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jolli1 [7]
1 year ago
6

What is the average translational kinetic energy of nitrogen molecules at 1600 K? A. 1.31x10-20 J. B. 2.31x10-20 J. C. 3.31x10-2

0 J. D. 4.31x10-20 J. ​
Physics
1 answer:
blsea [12.9K]1 year ago
4 0

KE

  • 5/2KT

For nitrogen n=5

So

  • 5/2(1.38×10^{-23})(1600)
  • 5500×10^{-23}
  • 5.5×10^{-20}J
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A bulldozer does 4,500 J of work to push a mound of soil to the top of a ramp that is 15 m high. The ramp is at an
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Answer:

170 N

Explanation:

Given in the question that, work a bulldozer can do = 4500 J

<h3>Step 1</h3>

We will use trigonometry identity to find the distance bulldozer will travel up the hill

sin(35) = opp/hypo

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hypo = 26.15m

<h3>Step 2</h3>

Formula to use

work done = force × distance

Plug values in the above formula

4500 = force x 26.15

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A toy car having mass m = 1.50 kg collides inelastically with a toy train of mass M = 3.60 kg. Before the collision, the toy tra
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Answer:

  v_{f} = 3,126 m / s

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In a crash exercise the moment is conserved, for this a system formed by all the bodies before and after the crash is defined, so that the forces involved have been internalized.

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      v_{f} = 3,126 m / s

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