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borishaifa [10]
3 years ago
12

A rail car moving at 10m/s collides with and connect to another stationary car. What is their final velocity?

Physics
1 answer:
ki77a [65]3 years ago
6 0

Answer:

read this it might help some

When a moving object collides with a stationary object of identical mass, the stationary object encounters the greater collision force. When a moving object collides with a stationary object of identical mass, the stationary object encounters the greater momentum change.

Explanation:

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If riding a lawnmower engine exerts 19 hp in one minute to move the lawnmower how much work is done
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Answer:

the work done by the lawnmower is 236.14 J.

Explanation:

Given;

power exerted by the lawnmower engine, P = 19 hp

time in which the power was exerted, t = 1 minute = 60 s.

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The work done by the lawnmower is calculated as follows;

Work = Energy = \frac{Power}{time} \\\\Work = \frac{(19 \times 745.7)}{60} = 236.14 \ J

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One mole of a gas is placed in a closed system with a 20 L vessel initially at T = 300 K. The vessel is then isothermally expand
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Answer:

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