3 years ago

Which fact is true during a fission chain reaction?

Physics

1 answer:

Free_Kalibri [48]3 years ago

8 0

Answer:

The number of freely-moving neutrons decreases over time.

Explanation:

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How fast does a 500kg car need to drive to have 100,000 J of kinetic energy?

olchik [2.2K]

Answer:

The car must move at 2 m/s to have a Ke of 2,000 Joules.

Explanation:

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3 years ago

The acceleration of an object as a function of time is given by a(t) = (1.00 m/s2)t2. If displacement of the object between time

jolli1 [7]

not enough information is given to determine the velocity of the object at time to=0.00s

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4 years ago

Imagine that treble sounds could travel at 400 m/s, but bass sounds traveled at only 300 m/s. If sound actually behaved that way

kirza4 [7]

Answer:

$\Delta t = 0.1s$

Explanation:

We need to calculate the difference between the times the waves from the bass sounds ( $t_b$ ) and treble sounds ( $t_t$ ) take to reach us, that is, $\Delta t = t_b-t_t$ .

Since $v=\frac{d}{t}$ , then $t=\frac{d}{v}$ and we can write:

$\Delta t = t_b-t_t=\frac{d}{v_b} - \frac{d}{v_t}=d(\frac{1}{v_b} - \frac{1}{v_t})=(120m)(\frac{1}{300m/s} - \frac{1}{400m/s})=0.1s$

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3 years ago

What is a black hole

AURORKA [14]

A black hole is a place in space where gravity pulls so much that even light can not get out.

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4 years ago

What does N.A.S.A stand for?

spayn [35]

Answer : National Aeronautics and Space Administration

Problem : What does N.A.S.A stand for?

Explanation: NASA astronaut Christina Koch is pictured during a spacewalk. NASA stands for National Aeronautics and Space Administration. NASA was started on October 1, 1958, as a part of the United States government. NASA is in charge of U.S. science and technology that has to do with airplanes or space.

Hopefully this helps you!

4 0

2 years ago

Read 2 more answers