Which of the following statements describes an actual orbit?
O
A. The Moon is a satellite of Earth.
O
B. The Sun is a satellite of Earth.
O
C. Earth is a satellite of the planet Jupiter.
O
D. The planet Jupiter is a satellite of Earth.

Answer: 20 newtons

Explanation:

Given that:

Force applied by Samantha = 10 newtons

Force applied by Emily = 10 newtons

Direction of both forces = same

Net force of their efforts = ?

Since net force of forces applied in the same direction is obtained by adding up the seperate forces applied, then

Net force = (10 newtons + 10 newtons)

Net force = 20 newtons

Thus, the net force of their efforts is 20 newtons.

The inner planets are;- Mercury, Venus, Earth and Mars.  Earth is the only planet which has atmosphere, water on the surface or know of  to have water(Mars might have water underground), and life.  

Mercury is pretty much a small planet on fire by day, but freezes at night.

Venus is a gas planet which is usually on fire in places too, but has mass ice craters on the surface.

Earth, well just look out your window.

Mars may have been an earth like planet at one stage, (still unknown) but is known as the red planet due to its volcanic activity.  Mars also has the biggest mountain/volcano on any known planet called Mt Olympus.  It's 3 times the size of Mt Everest.

Hope this helps!! :)

Answer:

Refraction?

Explanation:

Answer:

Math Skills Calculating Kinetic Energy and Potential Energy ... moving object depends on its mass and speed. ... represents the object's speed, measured in meters per second (m/s). ... Example 1: A bicycle and rider with a combined mass of ... the bicycle and rider? Given: m = 110 kg v = 8 m/s. Unknown: Kinetic energy (KE).

I think

Explanation:

The kinetic energy of a bicycle and rider with a combined mass of 110 kilograms traveling at a speed of 8 meters per second is 3520 joules, calculated using the formula KE = ½ mv².

The kinetic energy of an object can be calculated using the formula KE = 1/2 mv^2, where KE is the kinetic energy, m is the mass of the object, and v is the velocity of the object.

In this case, the combined mass of the bicycle and rider is 110 kg and the velocity is 8 m/s.

Substituting these values into the formula, we get KE = 1/2 (110 kg) (8 m/s)^2 = 3520 J.

The student's question pertains to calculating the kinetic energy of a bicycle and rider with a known mass and speed. The formula to find kinetic energy (KE) is KE = ½ mv², where 'm' is mass and 'v' is velocity.

To compute the kinetic energy for the given mass of 110 kilograms and velocity of 8 meters per second, we substitute these values into the formula:

KE = ½ (110 kg) × (8 m/s)²

KE = 55 kg × 64 m²/s²

KE = 3520 joules

Thus, the kinetic energy of the bicycle and rider is 3520 joules.

Answer:

C: the total energy is conserved

Explanation:

In a closed system they total mechanical energy is always conserved although energy may change from one form to another

Answer:

C. the total energy is conserved

Answer:

3N

Explanation:

Workdone = F x d

F = force

d = distance 8m

Workdone = 24J

24 = F x 8

Divide both sides by 8

24/8 = F x 8/8

3 = F

F = 3N

Answer:

the current is flowing to the left

the magnetic field is flowing out of the bottom of the screen

the screen and into the top of the screen.

Explanation:

Weight = (mass) x (gravity)

Weight = (7.0 kg) x (gravity)

On Earth, where (gravity) is roughly 10 N/kg . . .

Weight = (7.0 kg) x (roughly 10 N/kg)

Weight = roughly 70 Newtons

That's B on Earth.

It would be some other number on other bodies.

Final answer:

A 7.0-kilogram bowling ball on Earth would weigh approximately 70 newtons, as weight is calculated by multiplying mass by Earth's gravity (9.8 m/s²).

Explanation:

The weight of an object on Earth can be calculated using the formula Weight (N) = Mass (kg) × Gravity (m/s²). Since the standard acceleration due to gravity on Earth is approximately 9.8 m/s², a 7.0-kilogram bowling ball would have a weight of 7.0 kg × 9.8 m/s² = 68.6 N, which we round to 70 newtons (option B).

This conversion is crucial for solving problems that involve force and mass, such as questions on kinetic energy, momentum, and collision outcomes as typically covered in physics classes.

Answer:

A. Carnivores

Explanation:

Frogs, hawks, and lions are all carnivores. Thus, the correct option for this question is B.

Carnivores may be characterized as animals or organisms that typically eat the meat or flesh of other animals or a plant that traps and digests insects or other small animals. Some examples of carnivores may include lions, eagles, leopards, polar beer, frogs, etc.

Carnivorous animals have specialized dentition to hunt and kill prey. Some carnivorous animals such as chameleons and a few species of frogs have long sticky tongues to catch prey. Most carnivores are usually fast as they need to chase and tire their prey. Carnivores are also known as predators.

Organisms like grasshoppers, goats, horses, rabbits, deer, etc. are categorized under the category of herbivores as they only eat plants and their derived products.

Therefore, frogs, hawks, and lions are all carnivores. Thus, the correct option for this question is B.

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According to Newton's law, the incorrect statement is "for every action, there is an equal reaction perpendicular to the direction of the force". Therefore, option C is correct.

This statement does not accurately represent Newton's third law of motion. Newton's third law states that "For every action, there is an equal and opposite reaction." The reaction force is equal in magnitude but opposite in direction to the action force, not necessarily perpendicular to it.

These laws describe the relationships between the motion of objects and the forces acting upon them. They are foundational concepts in the field of classical mechanics and provide a framework for understanding how objects move and interact with one another. Therefore, option C is correct.

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Answer:

4.34 mi at [tex]36.3^{\circ}[/tex] north of east

Explanation:

The displacement of an object in motion is a vector connecting its initial position to the final position of motion.

In this problem, the man has 2 different motions:

- 3.50 mi due east

- 2.57 mi due north

We can take the east direction as positive x-direction and north as positive y-direction, so these two motions can be written as:

[tex]x=+3.50 mi[/tex]

[tex]y=+2.57 mi[/tex]

Since the two motions are perpendicular to each other, the resultant displacement can be found by using Pythagorean's theorem; therefore:

[tex]d=\sqrt{x^2+y^2}=\sqrt{3.50^2+2.57^2}=4.34 mi[/tex]

We can also find the direction using the equation:

[tex]tan \theta = \frac{y}{x}[/tex]

And therefore,

[tex]\theta=tan^{-1}(\frac{y}{x})=tan^{-1}(\frac{2.57}{3.50})=36.3^{\circ}[/tex]

The force that accelerates the car is the static friction force.

Acceleration is a rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down.

According to the condition,

When the car is accelerating, it will move in the direction of the net force. this is because the force of the engine is large enough to overcome the forces of friction and air resistance.

However, objects do not always move in the direction of the net force.

To accelerate something, there needs to be a force from the outside. For the car accelerating from rest, the only thing acting on it in the forward direction is the friction due to the ground.

The force that accelerates the car is the static friction force. It is the only external force acting forward on the car and is therefore responsible for its acceleration per Newton's second law.

That force is the equal and opposite reaction to the force the wheel exerts backward on the ground per Newton's third law.

The below diagram shows the exact answer.

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After the waxing gibbous, the lunar phase is the full moon so the answer is A.

Answer:

A

Explanation:

Full moon is the phase after a waxing gibbous

The kinetic energy for the above data is 1.0000 J.

The kinetic energy (KE) is calculated using the formula KE = 1/2 * m * v^2, resulting in a kinetic energy of 1.0 Joule for a 2.0 kg guinea pig moving at a speed of 1.0 m/s.

The kinetic energy (KE) of an object in motion is determined by the formula: KE = 1/2 * m * v^2, where m is the mass and v is the velocity. For the guinea pig in question, with a mass (m) of 2.0 kg and a velocity (v) of 1.0 m/s, the calculation is as follows:

KE = 1/2 * 2.0 kg * (1.0 m/s)^2

KE = 1/2 * 2.0 kg * 1.0 m^2/s^2

KE = 1.0 kg * 1.0 m^2/s^2

KE = 1.0 Joule

Therefore, the kinetic energy of the 2.0 kg guinea pig running at a speed of 1.0 m/s is 1.0 Joule.

Answer:

B) Energy

Explanation:

Answer:

consumes the hot

Explanation:

Black consume heat and white reflects the heat and doenst get that hot

Answer:

Potential

Explanation:

This is because it has not yet fallen, and it has the potential to fall and turn into kinetic energy. When it starts falling, it will be kinetic.

Answer:

Potential because it is in place.

Explanation:

Kinetic energy is when something is in motion. Potential is sitting still.

Hope this helps :)

Answer:

C. 23

Explanation:

The mass is made up by the proton and nuetrons,

12+11=23 your atomic mass

The butterfly in question is most likely a Papilio glaucus. This determination is made based on the features described in the provided dichotomous key, mainly the color of the wings. In a real situation, other factors such as geography could also play a role in identification.

The question presents a dichotomous key that is used to identify species, in this case, butterfly species based on wing shape and pattern. This is a common biological identification method. The butterfly in question is identified as Papilio glaucus.

This determination is based on the key provided: if the butterfly's hindwings are pointed or rounded (no specific shape was mentioned in the question), then we check the primary color. The Papilio glaucus is primarily yellow, therefore, if the butterfly has primarily yellow wings it is most likely this species.

Please note, that real-world species identification can be more complex and involve factors such as geographical location, time of year, and more.

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Answer: 262.5N

Explanation:

Given that:

Force exerted by a catcher’s glove (F) = ?

Mass of baseball (m) = 0.15 kg

Speed (s) = 35 m/s

Time (t) = 0.02 sec

The force exerted is obtained by dividing the momentum by time.

i.e Force = momentum/time

(since momentum is equal to the product of mass and speed)

i.e F= mv/t

F = (0.15 kg x 35 m/s)/0.02 sec

F = 5.25kgm/s / 0.02 sec

F = 262.5N

Thus, the force exerted by a catcher’s glove is 262.5 newton

Final answer:

The force exerted by a catcher's glove on a 0.15 kg baseball moving at 35 m/s that is stopped in 0.02 sec is 262.5 N in the direction opposite to the baseball's initial motion.

Explanation:

The force exerted by a catcher’s glove on a baseball can be found using Newton's second law of motion, which states that force is equal to the mass of an object multiplied by its acceleration (F = ma). The acceleration can be calculated by using the change in velocity (final velocity - initial velocity) divided by the time it takes to change the velocity.

Since the baseball is stopped, its final velocity is 0 m/s. Therefore, the acceleration a is (-35 m/s) / 0.02 s = -1750 m/s² (the negative sign indicates a decrease in speed). Subsequently, the force F exerted can be calculated as (0.15 kg) × (-1750 m/s²), which results in -262.5 N. The negative sign indicates that the force is applied in the direction opposite to the baseball's motion.

Thus, the force exerted by the glove on the baseball is 262.5 N in the direction opposite to the initial motion of the baseball.

Answer:

its B

Explanation:

Answer:

Pedalfer soils

Explanation:

6.18b: Pedalfer soils occur in temperate climates experiencing moderate to high rainfall.

The type of soil that occurs in temperate climates where rainfall is moderate to high is pedalfer soil.

A temperate climate is a moderate climate that is characterized by relatively mild temperatures and distinct seasonal changes.

Here,

Pedalfer soils are also known as "brown earth" and are characterized by a high content of iron and aluminum oxides. They are formed in regions with a humid climate, where rainfall leaches away nutrients and minerals from the topsoil and causes the accumulation of iron and aluminum oxides in the subsoil. Pedalfer soils are generally fertile and are commonly used for agricultural purposes due to their ability to support plant growth.

In contrast, pedocal soils are found in arid or semi-arid regions, laterite soils are found in tropical regions with high rainfall, and humus is a type of organic matter that can be found in various soil types.

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Answer:

52 m/s

Explanation:

Wavelength is the distance between two successive crests. Two crests make one circle hence 16 cycles are equal to 16 wavelengths. Each wavelength is equal to 208/16=13 m long

Speed of wave is given as the product of wavelength and frequency, expressed as

S=fw

Where f is the frequency and w is the wavelength

Substituting 13 m for w and 4 Hz for f then

S=4*13=52 m/s

Therefore, the speed is equivalent to 52 m/s

Answer:

C. An object with a negative electric charge.

Final answer:

An object with a positive electric charge will be attracted to an object with a negative electric charge. This is due to the principle that unlike charges attract each other, which is governed by Coulomb's law. So the correct option is C.

Explanation:

An object with a positive electric charge will be attracted to an object with a negative electric charge. According to the principles of electrostatics, like charges repel, and unlike charges attract each other. When you have two objects, one positively charged and the other negatively charged, the electrostatic force between them will cause them to move towards one another. This attraction is explained by Coulomb's law, which states that the force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

An object with no electric charge, or a neutral object, can also be attracted to a charged object because of polarization that occurs when the charged object is brought near. The electric field of the charged object causes the charges in the neutral object to rearrange, creating a region with a slight excess of charge that is opposite to that of the charged object, leading to an attractive force. However, two positively charged objects would repel each other, as would two negatively charged objects.

Answer and explanation:

Let [tex]v_1[/tex] be the velocity of a body projected vertically up, 1 second before it reaches its maximum height. We know, from the kinematics equations, that the distance traveled [tex]y[/tex] in an interval of time [tex]t[/tex] is equal to:

[tex]y=v_0t-\frac{1}{2}gt^{2}[/tex]

Then, in the last second, the distance traveled [tex]y_1[/tex] is equal to:

[tex]y_1=v_1t-\frac{1}{2}gt^{2}[/tex]

But the velocity [tex]v_1[/tex] is related to the time by the equation:

[tex]t=\frac{v_1}{g}\\\\v_1=gt[/tex]

And substituting this expression in the equation above, we obtain:

[tex]y_1=gt^{2}-\frac{1}{2}gt^{2}\\\\y_1=\frac{1}{2}gt^{2}\\\\y_1=\frac{1}{2}(9.8m/s^{2})(1s)^{2}\\ \\y_1=4.9m[/tex]

It means that the distance traveled by the body in the last second of its motion is a constant, independent of its initial velocity.

Answer:

See details below

Explanation:

1) The amount of matter in something -  is a mass - does not change when gravity changes - it is measured in kilograms.

2) a gravitational force - is a force (normally called weight) - changes when gravity changes - it is measured in newtons.

-- measured in newtons  . . . . . Weight

-- measured in kilograms  . . . . . Mass

-- does not change when gravity changes  . . . . . Mass

-- changes when gravity  changes  . . . . . Weight

-- the amount of matter  in something   . . . . . Mass

-- a gravitational force . . . . . Weight

Answer:

  3.92 N (straight down)

  2.36 N (down, parallel to the plane)

Explanation:

The only force acting on the system is apparently that due to gravity. The mass of the system is the sum of the masses of the blocks, so is ...

  0.20 kg + 0.20 kg = 0.40 kg

The force due to gravity is given by ...

  F = ma = (0.40 kg)(9.8 m/s²) = 3.92 N . . . (straight down)

That force is acting straight down, so is at an angle with respect to the direction the blocks are constrained to move.

The force down the plane is (3.92 N)·sin(37°) ≈ 2.359 N . . . (down the plane)

_____

Comment on the answer

We have given two answers to the question, because in this frictionless system, the force acting normal to the plane of motion is irrelevant to the system dynamics. The question asked for the net force on the system, which is the force due to gravity, so we have given that magnitude also.

The parallel force on the block system is 2.36 N

The perpendicular force on the bock system is 3.13 N.

The given parameters;

The magnitude of the net force exerted on the block system is calculated as follows;

The parallel force on the block system is calculated as;

[tex]F_{||} = mg \times sin(\theta)\\\\F_{||} = (0.2 + 0.2)\times 9.8 \times sin(37)\\\\F_{||} = 2.36 \ N[/tex]

The perpendicular force on the bock system;

F⊥ = mg x cos(Ф)

F⊥ = (0.2 + 0.2) x 9.8 x cos(37)

F⊥ = 3.13 N

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