3 years ago

Read the paragraph.

Physics

2 answers:

Nesterboy [21]3 years ago

8 0

Answer:

the answer is A ( the verb made )

i did the quiz and got it correct :D

valentinak56 [21]3 years ago

5 0

Omg I have the same question right now. I choose A)The verb made and I got it right

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2 years ago

A 0.2 kg block sliding on a horizontal table slows down from 25 m/s to 20 m/s. How much energy does the block lose due to fricti

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Answer:

the kinetic energy lost due to friction is 22.5 J

Explanation:

Given;

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initial velocity of the block, u = 25 m/s

final velocity of the block, v = 20 m/s

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$\Delta K.E= K.E_f - K.E_i\\\\\Delta K.E= \frac{1}{2}mv^2 - \frac{1}{2}mu^2\\\\\Delta K.E= \frac{1}{2}m(v^2 -u^2)\\\\\Delta K.E= \frac{1}{2} \times 0.2 (20^2 - 25^2)\\\\\Delta K.E= -22.5 \ J$