The cause and effect of breaking a egg

Answers

Answer 1
The cause; it was forced opened
The effect; the shell is cracked
Answer 2

Hold up raw egg and say “CAUSE” as you crack the egg on the side of the bowl.

2. Say “EFFECT” as you break open the egg into the bowl.

3. Hold up the hardboiled egg and say “CAUSE” as you go through exaggerated motions of tossing the egg to a student.

4. As they either catch it or drop it, say “EFFECT”.


Related Questions

when a ball is dropped off a cliff in free fall, it has an acceleration of 9.8 m/s^2. what is its acceleration as it gets closer to the ground

Answers

acceleration due to gravity is contract for the purposes of this question, so the acceleration would remain at 9.8 m/s^2

If the ball, the cliff, and the ground are all on the Earth, and everything is bathed in an ocean of air, then the ball's acceleration will decrease as it falls, because of the friction of air resistance.  If it has far enough to fall, it's possible that its acceleration may even become zero, and the ball settle on a constant speed (called "terminal velocity") before it hits the ground.

But until we get to College-level Physics and Engineering, we ALWAYS ignore that stuff, and assume NO AIR RESISTANCE.  The ball is in FREE FALL, and the ONLY force acting on it is the force of gravity.   We also assume that the distance of the fall is small enough so that the value of gravity is constant over the entire fall.

Under those assumptions, there's nothing present to change the acceleration of the falling ball.  It's 9.81 m/s² when it rolls off the edge of the cliff, and it's 9.81 m/s² when it hits the ground.

A child is sliding down a slide at the playground. Is the mechanical energy conserved? Why or why not? The mechanical energy is conserved. There is as much KE at the end as there was PE at the beginning. The mechanical energy isn't conserved. Some energy is lost to friction. Mechanical energy is always conserved. The mechanical energy isn't conserved. Some energy is lost to gravity.

Answers

Mechanical energy is not conserved. It is converted to other energy by friction since friction is a non conservative force.

Answer:

The mechanical energy isn't conserved. Some energy is lost to friction.

Explanation:

The energy of the system isn´t conserved because the whole system has other forces involved on it, in the ideal case with no friction or resistance the mechanical energy should be conerved and should always add up to the initial potential energy of the system, since this is not the case of a closed sytem and there is friction we could say that mechanical energy is lost to frictio and it isnñt conserved.

A fugitive tries to hop on a freight train traveling at a constant speed of 5.5 m/s. Just as an empty box car passes him, the fugitive starts from rest and accelerates at a = 4.2 m/s2 to his maximum speed of 8.0 m/s.
(a) How long does it take him to catch up to the empty box car?
s
(b) What is the distance traveled to reach the box car?
m

Answers

Let the Fugitive catch the empty box after "t" s of time

So the distance moved by train in same time will be

[tex]d = 5.5*t[/tex]

Now in the same way distance moved by fugitive who is accelerating with a = 4.2 m/s^2 to his maximum speed v = 8 m/s

SO the time taken by him to reach maximum speed

[tex]vf = vi + at[/tex]

[tex]8 = 0 + 4.2*t[/tex]

[tex]t = 1.9 s[/tex]

distance moved by fugitive in t = 1.9 s

[tex]d = vi* t + \frac{1}{2}at^2[/tex]

[tex]d = 0 + \frac{1}{2}*4.2* 1.9^2[/tex]

[tex]d = 7.62 m[/tex]

So in 1.9 s the train will move more than 7.62 m so it will definitely catch the train after this

distance moved by fugitive in time "t" = distance moved by train in same time

Let say it will catch the train after t = 1.9 s so after that time it will move to his constant speed of 8 m/s

[tex]7.62 + 8 * (t - 1.9) = 5.5 * t[/tex]

[tex]8*t - 5.5*t = 8*1.9 - 7.62[/tex]

[tex]2.5*t = 7.58[/tex]

[tex]t = 3.03 s[/tex]

So it will take 3.03 s to catch the train

Part B)

Distance traveled by fugitive in same time

[tex]d = 7.62 + 8*(t - 1.9)[/tex]

here it is because the fugitive will accelerate to reach at his maximum speed of 8 m/s till 1.9 s and cover a total distance of 7.62 m and after that it will move at his maximum speed for rest of the time.

[tex]d = 7.62 + 8*(3.03 - 1.9)[/tex]

[tex]d = 16.67 m[/tex]

so it will move a distance of 16.67 m

Which best describes the movement of a fluid during convection?

A. Warm & cool fluids rise


B. Warm & fluids sink

C. Warm fluid rises & cool fluid sinks

D. Warm fluid sinks & cool fluid rises

Answers

During convection, Warm fluid rises & cool fluid sinks (C).

Answer is C- warm fluid rises and cool fluid sinks.

Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Convection process takes place through advection or diffusion.

Which of the following is the equation for gravitational potential energy?
A. PE = mgh
B. PE = mv
C. PE = 1/2(mv)
D. PE = Fd

Answers

B is momentum.  It's a quantity of motion, or "how much stuff is moving"

C is *almost* kinetic energy but it's missing an exponent of 2 on the velocity, v.

D is an amound of work done in moving something a distance d while applying a constant force F.

That leaves A.  This is the potential energy of an object of mass m, in a gravitational acceleration g, at a height h above the reference point (usually the ground)

Answer is A- mgh.

The equation for gravitational potential energy is mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m/s ∧2 on Earth), and h is the height above the ground in meters.

Gravitational potential energy is defined as the  energy an object possesses due to its position in a gravitational field.

Which planet is small, with a rocky surface and an atmosphere?

Answers

Mars is the fourth planet from the sun and is known as the "red planet." It is the most like earth planet in space but about half its size. It has a dry rocky surface with a thin atmosphere.

A small planet with a rocky surface and atmosphere refers to the inner terrestrial planets like Venus and Mars. Venus has a thick, corrosive atmosphere, while Mars has a thin one. Both have rocky surfaces with geological features.

The planet that is small, with a rocky surface and an atmosphere is one of the inner or terrestrial planets of our solar system, which include Mercury, Venus, Earth, and Mars. Understanding their characteristics helps us compare and contrast them. For example, Mercury is the smallest planet and has a thin atmosphere which causes extreme temperatures. Venus, on the other hand, has a thick corrosive atmosphere and high surface temperatures, with geological features such as mountains and volcanoes that indicate a rocky surface. Earth has a unique atmosphere that supports life, and Mars also has a rocky surface with a thin atmosphere.

Based on the lesson summary provided, all four inner planets are known for their solid, rocky surfaces, but their atmospheres differentiate them. While Mercury's atmosphere is very thin, Venus' is thick and corrosive, Earth's supports life, and Mars' is thin but exists nonetheless. Each planet has unique surface features like craters, mountains, and volcanoes due to their geological histories.

These details not only highlight the differences in the atmospheres and surfaces of these terrestrial planets but also emphasize the factors, such as proximity to the Sun, that determine their conditions and compositions.

Adrian read about a new antimicrobial in a popular magazine. The advertisement claimed that the product Bactokil prevents bacterial growth. So, Adrian conducted a controlled experiment to test the product claims. Adrian added 1 mL of a solution containing different concentrations of Bactokil to equivalent samples of Escherichia coli bacteria and plated them in Petri dishes. After 24 hours, he counted the number of colonies on each plate. A graph of his results is shown below.

Answers

The results of the controlled experiment refute the claims of the company.

Answer:

The results of the controlled experiment refute the claims of the company.

Explanation:

Did the study island!

Roland writes a story in which boaters become stranded on a sandy island. In the story, they set about collecting materials to create semiconductors to repair computer components in their radio.

Which problem is likely to be the most difficult for Roland’s characters to overcome?

A) There are no semiconductor elements on the island.
B) Any substances they find are too impure.
C) They lack materials to make a p-type semiconductor.
D) No conductors are available to connect the components.

Answers

Answer:

C is correct.

Explanation:

If they are on a sandy island there won't be any materials truly pure. Therefore, they will only find impure materials.

The most difficulty for making semiconductors that Ronald's characters have to overcome is that any substances they find are too impure. So, option B is correct.

What is meant by a semiconductor ?

A semiconductor is an electrical device whose conductivity range lies in between that of conductors and insulators.

Here,

From the given details above, Roland writes about some boaters who become stranded on a sandy island. In that island, they were set to collect materials to create semiconductors to repair computer components in their radio.

In an island full of sands, the raw materials available for collecting will be extremely contaminated. In order to make good semiconductors they need pure silicon and germanium which are good semiconductor materials. But in the island, the materials will be so impure that there will be a large limitation for collecting raw materials to make semiconductors. There will be no scientific technique in an island to purify the materials, which will be the most difficulty for the boaters.

Hence,

The most difficulty for making semiconductors that Ronald's characters have to overcome is that any substances they find are too impure.

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how far is the region from the equator or helps control climate

Answers

could you please specify?

a person is strolling along a moving walkway at a constant velocity of +1.00 m/s with respect tot he walkway, which moves at a constant velocity of +0.50 m/s with respect to the ground. An observer on the ground is walking at a constant velocity of -0.2 m/s. what is the velocity of the person on the walk way with respect to the observers on the ground?
A - 0.7 m/s
B + 1.3 m/s
C - 0.3 m/s
D + 1.7 ms

Answers

Answer: D 1.7 m/s


In order to find the velocity of the person on the walk way with respect to the person on the ground we have to apply relative velocity concept.

Consider the observer on the ground as B and the person walking on the pathway as A.The relative velocity is the velocity that the body A would appear to an observer on the body B and vice versa.

Mathematically speaking the relative velocity is the vector difference between the velocities of two bodies.


Relative velocity = Velocity of Body A- Velocity of Body B.


Velocity of the person walking on the walkway (A)= 1.5 m/s.(given)

Velocity of the observer on the ground (B)= -0.2 m/s(given).

Relative velocity of object A with respect to B = 1.5 - (-0.2)= 1.7 m/s.


Thus the velocity of the person on the walk way with respect to the observers on the ground is 1.7 m/s.




compare the potential energy of water molecules as water changes from a solid to a liquid

Answers

The average kinetic energy of a substance is directly proportional to the temperature of that substance.

[tex]Mathematically\ Kinetic\ energy [K.E]\ \alpha\ T[/tex]

Here T is the temperature.

During the process of change of state,the temperature of the system remains constant as long one substance is not converted into another substance. It means that the energy absorbed or released at that time is utilised in changing the state of substance only. As kinetic energy is constant,so gain or loss of energy is attributed to potential energy.

In the given question,the water is converted from solid to liquid. During the melting of ice, heat is given to the ice for converting into liquid. The energy given is called latent heat which is nothing else than the gain of potential energy of water.

Hence water in liquid form has more potential energy than solid ice.


At the melting point, the solid  form of water changes to liquid form. This happens at fixed temperature. During the phase change, the bonds between the molecules break and weakens. This reduces the binding potential energy.  There is no change in the translational kinetic energy which is reflected by the temperature being constant during the phase change. The binding potential energy which reduces is actually utilized in breaking of the molecular bonds which eventually causes the phase change.

Is N2 + 3H2 →2NH3 a balanced chemical equation? Is it obeying the law of conservation of matter?

Answers

Yes, the equation is balanced. There are the same number of Nitrogen (N)  and Hydrogen (H) atoms one each side of the equation.

Hope I helped


While riding TRAX at a constant speed of 16 m/s you walk toward the front of the car at 5 m/s.

What is your velocity relative to someone standing outside the train?

Help please !! :)

Answers

Speed of the TRAX is given as 16 m/s so let say it is given as

[tex]v_t = 16 m/s[/tex]

now our speed towards the front end is given by 5 m/s so this is the relative speed of us with respect to TRAX

let say this speed is given as

[tex]v_1t = 5 m/s[/tex]

now we need to find the speed with respect to someone standing outside the TRAX

so here we need to find the net speed in ground frame and hence we can use the formula of relative speed

[tex]v_{1t} = v_1 - v_t[/tex]

[tex]v_1 = v_{1t} + v_t[/tex]

[tex]v_1 = 5 + 16[/tex]

[tex]v_1 = 21 m/s[/tex]

so someone outside the TRAX will see our speed as 21 m/s

what is relationship between latent heat and water ?

Answers

Latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature.
Final answer:

The latent heat of fusion of water is important for moderating air temperatures near large bodies of water, as it releases energy that warms the air and stabilizes the temperature when water freezes.

Explanation:

The latent heat of fusion is highly significant when it comes to the relationship between water and its impact on air temperatures. When water freezes, it releases latent heat, which helps to moderate temperature fluctuations in the environment. For a large body of water to transition from liquid to solid state, a vast amount of energy is required to be released in the form of latent heat. This energy release into the surrounding air can prevent temperatures from falling drastically below 0°C. This is because the freezing process is endothermic and expends heat energy that warms the air, thus slowing down the heat loss from the air.

Differing from sensible heat, latent heat does not result in a temperature change in the water itself during the state change. Hence, while a large body of water is undergoing freezing, it stabilizes the ambient air temperature in its proximity, making it a key climatic factor in regions near large lakes or oceans.

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what is the total precentage of radiation that is reflected by earths atmosphere

Answers

Around 48 % of the incoming solar energy passes through the atmospheric layer of the earth. The water vapor,ozone and dust present in the atmosphere absorbs 23 percent of incoming solar energy .Thus about 71% of the incoming solar radiation is absorbed by the earth. The rest 29% of the incoming solar radiation is reflected back into the space.

A normal walking speed is around 2.0 m/s . how much time t does it take the box to reach this speed if it has the acceleration 5.54 m/s2 that you calculated above?

Answers

Given:

u(initial velocity)=0

a=5.54m/s^2

v(final velocity)=2 m/s

v=u +at

Where v is the final velocity.

u is the initial velocity

a is the acceleration.

t is the time

2=0+5.54t

t=2/5.54

t=0.36 sec


Final answer:

Using the formula for acceleration, we find that the time it would take the box to reach the speed of 2.0 m/s under an acceleration of 5.54 m/s^2 is approximately 0.36 seconds.

Explanation:

To find out the time t it would take the box to reach the speed of 2.0 m/s under an acceleration of 5.54 m/s2, you would use the formula for acceleration, which is acceleration = change in speed / time. Solving this formula for time gives time = change in speed / acceleration.

Plugging the given values into this formula, we get time = 2.0 m/s / 5.54 m/s2. Calculating this gives a time of approximately 0.36 seconds.

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URGENT HELP NEEDED LOTS OF POINTS!!! If a ball accelerated downward at 9.8m/s2, by how many meters does the object's velocity change every second?

Answers

The acceleration due to gravity is always 9.8 m/s/s, regardless of the ball's velocity. If a person drops a ball from resting point, and the ball accelerates downward at a rate of 9.8 m/s2 it would still be the same. I hope this helps.. Sorry if it didn't.

While Bob is demonstrating the gravitational force on falling objects to his class, he drops an 1.0 lb bag of feathers from the top of the science building. Determine the distance the bag has traveled after falling for 1.5 seconds assuming it has reach free fall and given the gravitational acceleration of 9.8 m/sec2.
A) 7.4 m
B) 11 m
C) 15 m
D) 22 m

Answers

Answer:

Option B, 11 m is the correct answer.

Explanation:

We have equation of motion ,[tex]s=ut+\frac{1}{2} at^2[/tex] , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

In this case u = 0 m/s , t = 1.5 seconds , a = acceleration due to gravity = [tex]9.8m/s^2[/tex] , we need to find displacement

Substituting

 [tex]s=0*1.5+\frac{1}{2} *9.8*1.5^2\\ \\ s=11.025m[/tex]  

So option B, 11 m is the correct answer.

Answer:

11

Explanation:

A ship is traveling at 154 m/s and accelerates at a rate of 1.80 m/s^2 for 1 minute. What will its speed be after that minute? Calculate the answer in both meters per second and kilometers per hour.

Answers

Given:

u(initial velocity): 154 m/s

accelerates (a): 1.8 m/s^2

t= 1 min=60 secs

Now we know that

s= ut  + 1/2(at^2)

s= 154 x 60 + (1.8 × 60 ×60) ÷ 2

s= 12,480 m

In which of the following scenarios is chemical energy being transformed into thermal energy?

a
A lion’s temperature increases as it uses the energy it gets from its prey
b
A fish is able to swim using the energy it gets from eating plants
c
A squirrel uses the energy in seeds to build structures in its body
d
A tree captures sunlight to produce the sugars it uses for food

Answers

The transformation of chemical energy into thermal energy is best explained by option C.

Option C. Squirrel uses the energy in seeds to build structures in its body.

How do you find out that the chemical energy transformed into thermal energy?

The Law of conservation of energy states that if the chemical energy is converted into thermal energy during a process, then total energy will be constant during the process.

In the given options, Option C will be best suited for the energy conservation law.

When the squirrel ate the seeds, it gets the energy. The seeds contain chemical energy which is converted into thermal energy when the squirrel eats seeds. This thermal energy helps to frame the structures inside the body.

Hence we can conclude that option C is the best explaination.

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A proton and an electron are fixed 1.75 nm apart from each other. What is the force exerted on the electron due to the proton?

Answers

The magnitude of electrical force between them is about 7.52 × 10⁻¹¹ Newton

[tex]\texttt{ }[/tex]

Further explanation

Electric charge consists of two types i.e. positively electric charge and negatively electric charge.

[tex]\texttt{ }[/tex]

There was a famous scientist who investigated about this charges. His name is Coulomb and succeeded in formulating the force of attraction or repulsion between two charges i.e. :

[tex]\large {\boxed {F = k \frac{Q_1Q_2}{R^2} } }[/tex]

F = electric force (N)

k = electric constant (N m² / C²)

q = electric charge (C)

r = distance between charges (m)

The value of k in a vacuum = 9 x 10⁹ (N m² / C²)

Let's tackle the problem now !

[tex]\texttt{ }[/tex]

Given:

charge of proton = q₁ = 1.6 × 10⁻¹⁹ C

charge of electron = q₂ = 1.6 × 10⁻¹⁹ C

distance between proton and electron = R = 1.75 nm = 1.75 × 10⁻⁹ m

Unknown:

electrical force between them = F = ?

Solution:

[tex]F = k \frac{q_1 q_2}{R^2}[/tex]

[tex]F = 9 \times 10^9 \times \frac{ 1.6 \times 10^{-19} \times 1.6 \times 10^{-19} }{ ( 1.75 \times 10^{-9} )^2 }[/tex]

[tex]F = 9 \times 10^9 \times \frac{ 2.56 \times 10^{-38} }{ 3.0625 \times 10^{-18} }[/tex]

[tex]F \approx 7.52 \times 10^{-11} \texttt { Newton}[/tex]

[tex]\texttt{ }[/tex]

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[tex]\texttt{ }[/tex]

Answer details

Grade: High School

Subject: Physics

Chapter: Static Electricity

[tex]\texttt{ }[/tex]

Keywords: Series , Parallel , Measurement , Absolute , Error , Combination , Resistor , Resistance , Ohm , Charge , Small , Forces

Use the diagram to answer each question.


Why are the field lines of the magnetosphere farther apart on the side of Earth facing away from the sun?

Answers

The answer:

the field lines of the magnetosphere farther apart on the side of Earth facing away from the sun Because of the solar wind (the corona) which is released from the upper atmosphere of the Sun. it is a stream of charged particles.This plasma consists of alpha particles electrons, and protons. And has a kinetic energy between 0.5 and 10 keV. This solar wind which is ionized is distorting the Earth's field so this affected the field lines of the magnetosphere farther apart on the side of Earth facing away from the sun.

A racing car reaches a speed of 42 m/s. It then begins a uniform negative acceleration, using its parachute and braking system, and comes to rest 5.5 s later. Find the distance that the car travels during braking

Answers

As per the question the initial speed of the car [ u] is 42 m/s.

The car applied its brake and comes to rest after 5.5 second.

The final velocity [v] of the car will be zero.

From the equation of kinematics we know that

                                         [tex]v=u+at[/tex] [ here a stands for acceleration]

                                         [tex]0=42 +5.5a[/tex]

                                         [tex]a =\frac{-42}{5.5} m/s^2[/tex]

                                          [tex]a= -7.64 m/s^2[/tex]

Here a is taken negative as it the car is decelerating uniformly.

We are asked to calculate the stopping distance .

From equation of kinematics we know that

                                              [tex]S=ut+\frac{1}{2} at^2[/tex]  [here S is the distance]

                                                      [tex]= 42*5.5 +\frac{1}{2} [-7.64] [5.5]^2 m[/tex]

                                                       [tex]=115.445 m[/tex]      [ans]  

Final answer:

The racing car, decelerating at a uniform -7.64 m/s², travels 115.5 meters during the braking process over 5.5 seconds.

Explanation:

To find the distance a car travels during braking from a certain speed, you can use a physics formula for motion which states that displacement (distance) = Initial velocity * time + 0.5 * acceleration * time squared. As the car is slowing down, the acceleration will be negative. Hence, we have:

Initial speed u = 42 m/s

Final speed v = 0 m/s (as the car comes to rest)

Time t = 5.5 s

Using the first equation of motion to find acceleration a, v = u + at, thus, a = (v-u)/t = (0 - 42)/5.5 resulted in a = -7.64 m/s².

Now, by using the formula of motion s = ut + 0.5at², the distance can be calculated as follows: s = (42m/s * 5.5s) + 0.5 * -7.64 m/s² * (5.5s)², which results to s = 115.5m. Therefore, the car travels a distance of 115.5 meters while braking.

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According to symbolic interactionism, which stage of role taking involves individuals beginning to imagine and play the role of a significant other?

Answers

The correct stage of role taking according to symbolic interactionism is the play stage.

Symbolic interactionism is a sociological perspective that is influenced by the work of George Herbert Mead. According to Mead, the process of role taking involves several stages through which individuals develop their self-concept and learn to interact with others in society. The stages are as follows:

1. Preparatory Stage (Imitation): In this initial stage, children imitate the behaviors and actions of significant others without fully understanding the roles they are imitating.

2. Play Stage: This is the stage where individuals, often children, begin to imagine and play the role of a significant other. During the play stage, children take on the roles of people in their lives, such as parents, teachers, or other figures, and act out scenarios from their perspective. This imaginative play helps children to understand the roles and expectations of different social positions.

3. Game Stage: In the game stage, individuals start to internalize the generalized other, which represents the organized attitudes of a social group. Here, children learn to consider the expectations of a wider community and how their actions fit into larger social systems. They learn to play games with rules and understand that each role has its own set of expectations and behaviors that are dictated by social norms.

4. Generalized Other: Finally, individuals develop the ability to think from the perspective of the generalized other, which means they can consider the expectations of society as a whole when interacting with others. This stage is crucial for the development of a fully formed self-concept and the ability to engage in complex social interactions.

Thus, the play stage is where individuals begin to imagine and play the role of a significant other, which is essential for the development of empathy, social understanding, and the ability to take on various social roles throughout life.

Which of the following is true about all of the outer planets?A.Much of the material in these planets is solid.B.The surface of these planets is rocky.C.They have many moons.D.They all rotate in the same direction.

Answers

the awnsers is D all the planet's in the solar system rotate the same direction or else they would bump into each other

If an object floats, the volume of the displaced water is equal to the volume of the portion of the object that's above the surface of the water.
true or false

Answers

Answer:

FALSE

Explanation:

When object float in water then it means that weight of the object is counterbalanced by the buoyancy force.

Here as we know that buoyancy force is the weight of water displaced by the object.

So here when object is submerged into the water then the submerged part of the volume of object will displace exactly the same volume of water and that volume of water will exert upwards buoyancy force on the object.

So here this statement is not true as it says that volume of water displaced is volume above the surface of water while it must be like volume of water displaced must be equal to volume of submerged part of the object.

Answer: false

Explanation: the volume of water displaced is not equal to the volume of the object because the object is not submerged by the water. So the water displaced is the down trust force exerted on the water by the object

What is the proper term for the lowest natural frequency that is produced by a vibrating object, such as an instrument?

Answers

i believe your looking for this word ?? "fundamental".

Answer:

Fundamental frequency

Explanation:

Fundamental frequency is the lowest frequency which produced due to the oscillation of the body. This frequency is different from other higher frequencies.  If the tube is closed at one end, the velocity of sound divided by 4 times the length of the tube gives the fundamental frequency. The higher frequencies can be obtained by integral multiple of the fundamental frequency.

You have a small piece of iron at 75 °C and place it into a large container of water at 25 °C. Which of these best explains what will occur over time. A:The iron will cause the water to boil and turn to steam. B:The iron will take the heat from the water and get hotter. C:The water will cool significantly due to its colder temperature. D:Some heat from the iron will move to the water causing both to change temperatures.

Answers

D. Heat energy will be transferred within the system and if left long enough, there will be enough transferred energy to make both of them the same temperature.

D:Some heat from the iron will move to the water causing both to change temperatures.

"Fifteen hundred years ago everybody knew the Earth was the center of the universe. Five hundred years ago, everybody knew the Earth was flat, and fifteen minutes ago, you knew that humans were alone on this planet. Imagine what you’ll know tomorrow.” That's a statement of Agent Kay in from Men in Black. Agent Kay's statement illustrates that theories are A) always true. B) constantly changing. C) describe what happens in the natural world. D) are proven by evidence collected by scientists.

Answers

I believe its B, constantly changing

Scientific theories are constantly changing for many reasons. Sometimes it IS because of new evidence. But we would not use the term proven because they ARE always changing! Therefore, the answer is B.

An aircraft operating at 40,000 feet msl in the standard atmosphere encounters what amount of the atmospheric density as at sea level?

Answers

Atmospheric density at sea level is 1.225 kg/m3. Density of air decreases with height/altitude. According to International Standard Atmosphere (ISA), for an altitude of 40,000 feet, the density of air is 0.003996 kg/m3. So the aircraft operating at 40,000 feet msl will encounter an atmospheric density of 0.003996 kg/m3 (0.000249 lb/cu.ft.)

Other Questions
A group health plan that saves you money on health insurance is an example of a/an _____.A. TaxB. PaymentC. employee benefitD. Bonus What ideas did Thomas Paine promote in Common Sense? Which is another way to express the problem 1 - (-7) change the color of font according to the uses of ethos, logos and pathos that you see. Ethos in blue (there are 4 examples)Logos in black (there are 3 examples)Pathos in red (there are 4 examples)Triple! - all three appeals - in green (just one example - found in the second half of the letter)Arguing with Aristotle Email The other night, we received this rather unexpected e-mail from our 14 year old son, reprinted here with his permission: Subject: Sorry to send this to you in an e-mail I know re-registration for school is coming up, and Im also aware how happy both you and Mommy are with me being there. The thing is, I have such amazing friends at the local public high school that (even though I may not show it all the time), I miss them so incredibly much, and I think about them every day wishing we had never split up. With such a perfect opportunity to continue our friendships together, it seems SO STUPID to me that were at different schools, when we could have all stayed together. Every day that Im sitting in class and I go off into a daydream, I think of all the fun we could be having together, all the times were missing, just so that I can be at a private school with a good reputation. The truth is, the local public high school offers just as good Honors classes, it just has a worse reputation because of some of the kids that go there. Sure Ive made new friends here, but Ive been hanging out with them every day when I could be hanging out with my best friends every single day. I know you probably wont believe me on this, but I decided to go here on a sort of an impulse, and because of the excitement of getting accepted in to such a well-spoken of school. Ive been regretting that decision just about every day since the first day of school. I sort of feel like my friends and my relationships are splitting apart, just because of differences between schedules. Also, dont think that sending me to a private school is going to keep me out of drugs. I mean lets be serious: high schools will have ample amounts of drugs no matter where I go, and Im tired of all the racism, popularity contests, and disputes over who has more money. Apparently where I go to school its cool to do drugs, put down others for not doing so, and so on and so forth. Ive already found out that theres no such thing as a perfect school, and whether it be a private or public school is just based on which families have more money. Now, dont think I believe that none of this wont happen anywhere else, because Im not stupid. It just seems crazy for me not to go to a school with people Ive known for so long, because these last four years are my last ones before we all split up for good. I know there are grammatical errors in here, it might not flow very well, and I probably jumped around quite a lot, but I just want to say that this came from the heart, and I mean everything I said. Please just talk to each other about this. Sorry that I sent it in an e-mail rather than in person, but I just thought I could say what I wanted on here without being interrupted. 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