2 years ago

How much energy is required to move an electron through a potential difference of

Physics

1 answer:

Tresset [83]2 years ago

3 0

I think it’s going to be the 2nd one

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When does the fall equinox occur in the northern hemisphere

aivan3 [116]

Here is your answer

On 23rd September

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2 years ago

The CIA investigated hypnosis as a possible tool for interrogating prisoners. Why did they decide it was unsuitable for that

alukav5142 [94]

Answer:

D. Hypnosis can make the subjects talk, but they talk only about their childhoods.

Explanation:

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3 years ago

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Ángel is riding his bike 15m/h south a) speed b) velocity c) acceleration

mixer [17]

Answer:

Velocity

Explanation:

Speed does not have a direction, Acceleration means that it is speeding up and not at a constant 15m/h, so the answer is B.

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2 years ago

A 92kg astronaut and a 1200kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving

Harman [31]

Answer:

13.7m

Explanation:

Since there's no external force acting on the astronaut or the satellite, the momentum must be conserved before and after the push. Since both are at rest before, momentum is 0.

After the push

$m_av_a + m_sv_s = 0$

Where $m_a = 92kg$ is the mass of the astronaut, $m_s = 1200kg$ is the mass of the satellite, $v_s = 0.14 m/s$ is the speed of the satellite. We can calculate the speed $v_a$ of the astronaut:

$v_a = \frac{-m_sv_s}{m_a} = \frac{-1200*0.14}{92} = -1.83 m/s$

So the astronaut has a opposite direction with the satellite motion, which is further away from the shuttle. Since it takes 7.5 s for the astronaut to make contact with the shuttle, the distance would be

d = vt = 1.83 * 7.5 = 13.7 m

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2 years ago

Pushing a rock from a hill top is called

wariber [46]

It's called "utter disregard for the safety and welfare
of the people standing at the bottom of the hill".

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2 years ago