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Vlad [161]
2 years ago
13

Potential energy of an apple is 6j. the apple is 3.00m high. what is the mass of the apple?​

Physics
1 answer:
HACTEHA [7]2 years ago
5 0

Answer:

0.2 kg

Explanation:

PE = mgh

6 J = m (9.8 m/s²) (3.00 m)

m = 0.2 kg

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In one sentence describe how the electricity in an action potential is generated
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Due to influx of potassium ions, electricity is generated in axon of a neuron.  

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Substances X and Y are both nonpolar. If the volatility of X is higher than that of Y, what is the best explanation?
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I believe the correct answer from the choices listed above is the last option.  If the volatility of X is higher than that of Y, then  <span>Y’s molecules experience stronger London dispersion forces than X’s molecules. All molecules has london dispersion forces. Also,  the stronger the bond, the harder it is to volatilize. Hope this answers the question.</span>
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3 years ago
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A car accelerates from rest at 3.00 m/second squared What is the velocity after 5 secs ? What is the displacement after 5 second
andrey2020 [161]

Explanation:

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12. A rocket, initially at rest on the ground, accelerates vertically. It accelerates uniformly until it
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Answer:

We kindly invite you to read carefully the explanation and check the image attached below.

Explanation:

According to this problem, the rocket is accelerated uniformly due to thrust during 30 seconds and after that is decelerated due to gravity. The velocity as function of initial velocity, acceleration and time is:

v_{f} = v_{o}+a\cdot (t-t_{o}) (1)

Where:

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v_{f} - Final velocity, measured in meters per second.

a - Acceleration, measured in meters per square second.

t_{o} - Initial time, measured in seconds.

t - Final time, measured in seconds.

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v = 30\cdot t (2)

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Now we created the graph speed-time, which can be seen below.

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