Callie did a lab during which she investigated the difference in cellular respiration rates between two different types of corn: germinating and non-germinating. A germinating seed is one from which plant has started to grow. A non-germinating seed is usually dry, and a new plant has not yet emerged.The data that she gathered is displayed in the graph below.
Which of the following statements are true concerning the data that Callie gathered during the lab? Choose the two that apply.
A.The germinating corn seed produced more energy than the non-germinating corn seed.
B.The non-germinating corn seed produced more carbon dioxide than the germinating corn seed.
C. The germinating corn seed consumed more oxygen than the non-germinating corn seed.
D. The non-germinating corn seed performed more cellular respiration and the germinating corn seed.
E. The non-germinating corn seed performed cellular respiration and the germinating corn seed performed fermentation.
Please I NEED the TWO ANSWERS ASAP!

Answer:

30 kg

Explanation:

Newton's second law:

F = ma

60 N = m (2 m/s²)

m = 30 kg

Answer:

[tex]30\:g[/tex]

Explanation:

Isaac Newton's second law of motion

[tex]\displaystyle ma = F_{net}[/tex]

[tex]\displaystyle \frac{60}{2} = m \\ \\ 30 = m[/tex]

* Now, that bar above 18 is what is known as bar notation, indicating repetition in the digits.

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900 grams of lead can be added max to the tin so that it does not sink.

Explanation:

According to the Archimedes principle, an object will not sink in a medium until the density of the object exceeds the density of the medium.

The medium we have is water.

The density of medium(water) is given as ρ° = 1 g/cm³

Density of an object is simply its mass contained per unit volume.

Density = mass/volume

Volume of the tin = v = 1000 cm³

Mass of the tin = m = 100 g

Mass of lead that can be added without sinking = x

Total mass after adding lead in the tin = Mt = m + x

Total density after lead is added to the tin is given as:

ρt = (m+x)/v

Now, according to Archimedes principle, lead can be added to the tin until the density of tin is equal to the density of water.

ρt = ρ°

Mt/v = ρ°

(m + x)/v = ρ°

⇒ (100 + x)/1000 = 1

⇒ 100 + x = 1000

⇒ x = 1000 - 100

x = 900 g

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Answer:

The work done by you, W = 9800 J

Explanation:

Given data,

The displacement of the car, S = 5 m

Let the mass of the car be, m = 2000 kg

Let the coefficient of static friction be 0

Hence, no frictional force is acting on the tire and ground.

Let, you push down the car to provide more friction, μₓ = 0.1 (you can change the value)

In order to provide the static friction, you push down the car is equal to the static friction force,

                                      Fₓ =  μₓ · η

Where,

                                 η - normal force acting on the car (mg)

Substituting the values,

                                   Fₓ = 0.1 x 2000 x 9.8

                                       = 1960 N  

Therefore work done,

                                   W = Fₓ x S

                                        = 1960 N x 5 m

                                        = 9800 J

Hence, the work done by you, W = 9800 J

Answer:

No you would not be an entrepreneur

Explanation:

An entrepreneur is someone who creates a business, and also organize the business affairs. The entrepreneur takes on the biggest financial risk.

Answer:

No, taking a job with Amazon does not make one an entrepreneur

Explanation:

An entrepreneur is an individual that sets up a business or businesses (with the aim of making profit). In any organization, the person or persons that start up the business or businesses are the entrepreneurs while the people employed are the employee of the business/businesses.

Entrepreneurs usually create jobs for the employee and not the other way round (even when the idea could come from the employee).

From the above, it can be deduced that a person who gets a job at Amazon is an employee while the owner of Amazon is the entrepreneur.

The mass of the ball is 6.67 kg

Explanation:

The momentum of an object is given by:

[tex]p=mv[/tex]

where

p is the momentum

m is the mass of the object

v is its velocity

It must be noted that momentum is a vector quantity, so it has both magnitude and direction (but here only the magnitude is given).

For the ball in this problem, we have:

v = 1.5 m/s is its velocity

p = 10.0 kg m/s is its momentum

Solving the formula for m, we find the mass of the ball:

[tex]m=\frac{p}{v}=\frac{10}{1.5}=6.67 kg[/tex]

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Answer:

2100 J

Explanation:

Work = force × distance

W = Fd

W = (140 N) (15 m)

W = 2100 J

Answer:

[tex]\displaystyle 2100\:J[/tex]

Explanation:

[tex]\displaystyle FD = W → 2100 = [15][140][/tex]

Force by Distance

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Answer:

endothermic reactions

Answer:

endothermic reactions

Explanation:

endothermic reactions means the reaction gets super hot while the surrounding area gets colder. (absorbs energy)

exothermic means the surrounding area gets hot while it gets colder. (releases energy)

Answer:option A is correct.

Explanation:Because in option C :magnetic field is constant.

Option D:Because in option D,electric field is constant.

Because constant electric and magnetic fields cannot produce electric current.

Option B:A changing electric field cannot produce magnetic field.

Option A:Because a changing magnetic field can produce electric current.

A rotating coil in a magnetic field generates electricity by electromagnetic induction, where a changing magnetic field within the coil induces an electric current.

A rotating coil inside a magnetic field generates electricity through a process known as electromagnetic induction. This principle is based on Faraday's Law of Electromagnetic Induction that states a changing magnetic field within a conductive loop induces an electromotive force. As the coil rotates, it cuts across magnetic field lines, inducing a voltage change. The variation in the magnetic field induces an electric current in the coil. This process is the basic working principle behind many electrical generators and motors.

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Answer:

The acceleration of the car is [tex]1.432 m/s^{2}[/tex]

Explanation:

We are assuming rightward coordinate positive and all quantities are along this direction

We know,

[tex]a = \frac{dv}{dt}[/tex]

where a - acceleration, v=velocity, t=time and x=displacement

multiply by dx in both sides

[tex]adx = \frac{dv}{dt} dx[/tex]

but we know [tex]\frac{dx}{dt} = v[/tex]

Therefore,

[tex]adx = vdv[/tex]

Here we integrate both sides with proper limits

x ranges from 0 to 110 as v ranges from 29 to 34

p = 0, r = 110, q = 29, s = 34

[tex]a\int\limits^r_pdx = \int\limits^s_q {v} \, dv[/tex]

a is given as constant thus can be pulled out of the integration

[tex]a[110-0] = [\frac{34^{2}}{2}- \frac{29^{2}}{2}][/tex]

Therefore,

Accelaration of the car is [tex]1.432 m/s^{2}[/tex]

Note:

Here moving to the right doesn't mean anything significant other than the fact that all quantities are pointing in that direction. Therefore obtained acceleration is also towards the right

If you know equation of motion for constant acceleration as

[tex]v^{2} -u^{2} = 2as[/tex] you can plug in values in this equation to obtain value of a

v - final velocity

u - initial velocity

s - displacement

The final velocity is 2.7 m/s

Explanation:

We can solve this problem by using the principle of conservation of momentum: in fact, in absence of external forces, the total momentum of the system must be conserved before and after the collision.

Therefore we can write:

[tex]p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1+m_2)v[/tex]  

where:  

[tex]m_1 = 3 kg[/tex] is the mass of the putty

[tex]u_1 = 10 m/s[/tex] is the initial velocity of the putty (we take its direction as positive direction)

[tex]m_2 = 8 kg[/tex] is the mass of the ball

[tex]u_2 = 0 m/s[/tex] is the initial velocity of the ball (at rest)

[tex]v[/tex] is the final combined velocity of the two putty+ball

Re-arranging the equation and substituting the values, we find the  final combined velocity:

[tex]v=\frac{m_1 u_1 + m_2 u_2}{m_1+m_2}=\frac{(3)(10)+0}{3+8}=2.7 m/s[/tex]

And the positive sign indicates their final direction is the same as the initial direction of the putty.

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The work done is 6958 J

Explanation:

The work done by the man to raise the weight is the equal to the increase in gravitational potential energy of the weight, so we can write:

[tex]W=mg \Delta h[/tex]

where

(mg) is the weight, with m being the mass and g the acceleration of gravity

[tex]\Delta h[/tex] is the change in height of the weight

In this problem, we have

mg = 710 N (weight)

[tex]\Delta h = 0.65 m[/tex]

Therefore, the work done is

[tex]W=(710)(9.8)=6,958 J[/tex]

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The work done is 461.5 J.

Explanation:

According to Kinetics, the work done is calculated as the product of force which has done work, and the displacement it has imposed. Hence,

                     [tex]\text {Work done}=F \times s[/tex]

In the problem, the given data, F = 710 N and s = 0.65 m

By applying the given values to the work done equation, we get as follows,

                     [tex]\text { Work done } = 710 \times 0.65 = 461.5 \mathrm{J}[/tex]

The unit is same as the energy, work done defines when 1 N force acts in a 1 m distance along the force’s direction.

Answer:

As we keep on increasing the radius the value of the gravitation force of attraction decreases and as we decrease the radius the gravitation force increases.

Explanation:

Like the coulombs law of electrostatics, the law of gravitation also depends inversely on the square of the value of r. Therefore, as we keep on increasing the value of r the value of the gravitation force decreases and as we decrease the value of the r the value of gravitation force increases.

Gravitation Force=[tex]\frac{Gm_{1}m_{2} }{r^{2}}[/tex]

Coulombs's Law= [tex]\frac{Kq_{1}q_{2} }{r^{2}}[/tex]

Answer:

The answer is C

Explanation:

I did it on usatestprep and got it right

Answer:

Radiation is the answer to your question

The wavelength is 91.5 pm ( 91.5 Pico meter).

Explanation:

The formula can be expressed below for electron’s energy,

            [tex]\text {Energy of electron}=\frac{p^{2}}{2 m}[/tex]

Where,

p = momentum

m= mass of electron

We know, mass of electron =  [tex]9.1 \times 10^{-31} \mathrm{kg}[/tex]

Energy of electron, [tex]1 e V=1.6 \times 10^{-19} \mathrm{J}[/tex]

Therefore, [tex]\text { energy of electron, 180 eV }=180 \times 1.6 \times 10^{-19} J[/tex]

By substituting the known values in the equation, we get,

          [tex]180 \times 1.6 \times 10^{-19}=\frac{p^{2}}{2 \times 9.1 \times 10^{-31}}[/tex]

          [tex]p^{2}=180 \times 1.6 \times 10^{-19} \times 2 \times 9.1 \times 10^{-31}[/tex]

          [tex]p^{2}=5241.6 \times 10^{-50}[/tex]

Taking square root, we get

          [tex]\text {Momentum, } p=72.399 \times 10^{-25} \mathrm{kg} . \mathrm{m} / \mathrm{s}[/tex]

We know,

               [tex]\lambda=\frac{h}{p}[/tex]

Here, h – Planck constant = [tex]6.626 \times 10^{-34} \mathrm{J.s}[/tex]

So, the wavelength would be,

              [tex]\lambda=\frac{6.626 \times 10^{-34}}{72.399 \times 10^{-25}}=0.0915 \times 10^{-34+25}=0.0915 \times 10^{-9} \mathrm{m}[/tex]

Adding [tex]10^{-3}[/tex]  in both numerator and denominator we get the value as

              [tex]\lambda=0.0915 \times 10^{-9} \times \frac{10^{-3}}{10^{-3}}=0.0915 \times 10^{3} \times 10^{-12}=91.5 \mathrm{pm}[/tex]

Where, pm – Pico meter - [tex]10^{-12}[/tex]

Answer:

I believe that the answer is D. There are drilling platforms all along the coast that are used to drill for natural gas that can be used to generate electricity.

Explanation:

Solar panels use the sun, and that is renewable.

The power plant uses tides and waves, they are renewable.

Windmills use wind, that is renewable.

So, the answer is D.

Answer:

D. There are drilling platforms all along the coast that are used to drill for natural gas that can be used to generate electricity.

The mechanical advantage of the pulley is 3.56

Explanation:

The Mechanical Advantage (MA) of a pulley system is given by

[tex]MA=\frac{Load}{Effort}[/tex]

where

Load is the weight of the object lifted

Effort is the force applied in input

For the pulley in this problem, we have:

Effort = 55 N

While the load is the weight of the box of mass m = 20.0 kg:

[tex]Load = mg = (20.0 kg)(9.8 m/s^2)=196 N[/tex]

Substittuing, we find the MA of the pulley:

[tex]MA=\frac{196}{55}=3.56[/tex]

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The final velocity of the rock is 19.8 m/s

Explanation:

The motion of the rock is a free fall motion (subjected only to the force of gravity), with constant acceleration [tex]g=9.8 m/s^2[/tex] towards the ground. Therefore, we can use the following suvat equation:

[tex]v^2-u^2=2as[/tex]

where

v is the final velocity

u is the initial velocity

a is the acceleration

s is the vertical displacement

For the rock in this problem,

u = 0 (initial velocity is zero)

[tex]a=g=9.8 m/s^2[/tex]

s = 20 m (height of the cliff)

Solving for v,

[tex]v=\sqrt{u^2+2as}=\sqrt{0+2(9.8)(20)}=19.8 m/s[/tex]

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Explanation:

The cross section per unit length is uniform, so ρ is constant.

The center of mass is therefore:

x_avg = (∫₀ᴸ x ρ dL) / (∫₀ᴸ ρ dL)

x_avg = (∫₀ᴸ x dL) / (∫₀ᴸ dL)

x_avg = (½ L²) / (L)

x_avg = ½ L

True: when there is an angle between force and displacement, [tex]W=Fd cos \theta[/tex]

Explanation:

The work done by a force when pushing/pulling an object is given by the equation

[tex]W=Fd cos \theta[/tex]

where

F is the magnitude of the force

d is the displacement of the object

[tex]\theta[/tex] is the angle between the direction of the force and of the displacement

We have two extreme cases:

- When the force is parallel to the displacement, then [tex]\theta=0^{\circ}[/tex] and [tex]cos \theta = 1[/tex], so the work done is maximum and simply becomes

[tex]W=Fd[/tex]

- When the force is perpendicular to the displacement, then [tex]\theta=90^{\circ}[/tex] and [tex]cos \theta =0[/tex], so the work done is zero.

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Yes, but it's a null vector .So,no vector can have a component at right angle to itself unless it is a zero vector.

The magnitude of a vector component at a right angle to the vector is zero, and the condition for the resultant of two vectors of equal magnitude to equal the magnitude of either one is when the angle between them is 0 or 180 degrees.

The magnitude of the component of a vector at a right angle to itself is always zero because a vector cannot have a component in the direction that is perpendicular to its direction of action. When we calculate the magnitude A and direction of a vector from its perpendicular components Ax and Ay, relative to the x-axis, we use trigonometric relationships, where Ax = A×cos(θ) and Ay = A×sin(θ).

Now, under the specific condition when two vectors are at right angles to each other, the magnitudes of their sum and difference are the same. This happens because the vectors are orthogonal, and their components in the direction of each other are zero. We also know that when the components are equal and vectors are added with an angle of 90 degrees between them, the magnitude of the resultant equals the magnitude of either vector multiplied by the square root of two. This is due to Pythagoras' theorem applied in the context of vector addition.

Answer:

13 to 19 years old

Explanation:

Because these 6 years there is the word TEEN 13, 14, 15, 16, 17, 18, and 19. but in 20 there is no teen.

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Answer:

Answer: •Currents occur at the surface of and deep within the ocean.

             •The Coriolis effect contributes to the direction of current flow.

             •Wind direction, the spin of Earth, and differences in temperature  

Explanation:

Answer:

The gauge pressure is = 91.52 lb/in²

Explanation:

Given data,

The value of pressure in S.I unit, = 6.31 x 10⁵ N/m²

The conversion formula for SI unit into US Customary Units is given by,

                             1 N/m² = 1.45 x 10⁻⁴ lb/in²

Using the conversion formula, the new value of pressure becomes,

                        Pressure = 6.31 x 10⁵ X 1.45 x 10⁻⁴ lb/in²

                                         = 91.52 lb/in²

Hence, the gauge pressure is, ς = 91.52 lb/in²

To convert the absolute pressure of 6.31 × 10^5 N/m² to gauge pressure in lb/in², subtract the atmospheric pressure from the absolute pressure and then convert the gauge pressure from N/m² to lb/in² using the conversion factor. Therefore, the gauge pressure is approximately 76.8 lb/in.².

To convert the absolute pressure of 6.31 × 10^5 N/m² to gauge pressure in lb/in², we can use the conversion factor of 1 lb/in.² = 6.90 × 10³ N/m². First, we'll calculate the gauge pressure in N/m² by subtracting the atmospheric pressure (which is 1 atm) from the absolute pressure:

Next, we'll convert the gauge pressure from N/m² to lb/in²:

Therefore, the gauge pressure is approximately 76.8 lb/in.²

The current through a 25 ohm resistor connected to a 5.0 V power supply is 0.2 A. Option A is correct.

Ohm's Law:

The voltage of the two points between in a conductor is directly proportional to the current flows through the conductor.

V = IR

Where,

V = voltage  = 5.0 V

I = current  = ?

R = resistance -  25  ohm

Put the values in the equation,

5 = 25 x I

I = 0.2 A

Therefore,  the current through a 25 ohm resistor connected to a 5.0 V power supply is 0.2 A.

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Answer:

Accuracy refers to how close measurements are to the "true" value, while precision refers to how close measurements are to each other

The given statement "  Accuracy and precision mean the same thing" is false because accuracy and precision are two distinct concepts used to describe the quality of measurements.

1. Accuracy: Refers to how close a measured value is to the true or accepted value. In other words, it measures the correctness of a measurement. A measurement is considered accurate if it is close to the true value.

2. Precision: Refers to the consistency or reproducibility of measurements. It describes how close multiple measurements of the same quantity are to each other. Precision does not necessarily imply accuracy; measurements can be precise but not accurate if they are consistently off-target.

In summary, accuracy relates to correctness, while precision relates to consistency. A measurement can be accurate, precise, both, or neither. Therefore, accuracy and precision do not mean the same thing, and it is essential to distinguish between the two when evaluating the reliability of measurements.

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Answer: Acted on by equal forces in opposite direction

Explanation:

Newton's First Law says that every body continue in its state of rest or constant speed on a straight line unless being acted upon by an external force.

Answer:

Acted on by equal forces in opposite direction

Explanation:

Answer: Work done is 18J

Explanation:

Force F = (Fx, Fy) and Displacement S = (Sx,Sy)

Fx=7N

Fy=-1N

Sx=3m

Sy=3m

F=(7,-1)N and S=(3,3)m

Work done is calculated by taking dot product of force and displacement vector

W=F·S

W=7×3 + (-1)×3

W=21+(-3)=18J

Answer:

18 and 35 degrees

Explanation:

The acceleration of the ball after leaving the hand is [tex]9.8 m/s^2[/tex] downward

Explanation:

In order to find the acceleration of the ball during its motion, we have to study which forces are acting on it.

After the ball leaves the hand, if we neglect air resistance, there is only one force acting on the ball: the force of gravity, whose magnitude is

[tex]F=mg[/tex]

where m is the mass of the ball and g is the acceleration of gravity ([tex]g=9.8 m/s^2[/tex]), acting in the downward direction.

According to Newton's second law, the acceleration of the ball is given by

[tex]a=\frac{\sum F}{m}[/tex]

where

[tex]\sum F[/tex] is the net force acting on the ball

After the ball leaves the hand, the only force acting on it is the force of gravity, so we can substitute (mg) into the previous equation:

[tex]a=\frac{mg}{m}=g=9.8 m/s^2[/tex]

This means that the acceleration of the ball remains [tex]9.8 m/s^2[/tex] downward for the entire motion, after leaving the hand.

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Final answer:

The acceleration of the ball after it is thrown upward is a constant 9.8 m/s^2 downward due to gravity.

Explanation:

After you throw a ball upward with a speed of 14m/s, the acceleration of the ball after it leaves your hand is determined by the force of gravity. Regardless of the initial speed given to the ball, once it is not in contact with your hand, there is no longer any force being applied to it in the upward direction. Therefore, the only force acting on it is the force of gravity pulling it back toward the Earth's surface.

This force causes the ball to have a constant downward acceleration of approximately 9.8 m/s2, which is the standard acceleration due to gravity near the Earth's surface (often represented by the symbol g).

Answer:

Tendon connects our muscles to our bones.

Explanation:

A tendon (or sinew) is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension.

Tendons are similar to ligaments and fasciae; all three are made of collagen.

Ligaments join one bone to another bone; fasciae connect muscles to other muscles.

Tendons and muscles work together to move bones.

The tendon is the part of the muscle that connects directly to the bone.