3 years ago

Why does the cyclist have less kinetic energy at position A than at position B?

Physics

1 answer:

g100num [7]3 years ago

7 0

the answer is A. Their is less friction between the tire and the road at position A than at position B.

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The force is opposite to the displacement

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An electric grinder uses a grinding wheel

luda_lava [24]

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(B) 
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Answer:

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Is this correct and plz j answer the right one I can’t have an explanation rn I’m in a rush thx so much

vova2212 [387]

I pretty sure it’s C

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3 years ago

The Pacific Giant Kelp grows at a rate of 18 in/day. How many centimeters per hour is this?

Airida [17]

For this case we must do a conversion. By definition we have to:

1 inch equals 2.54 centimeters

1 day equals 24 hours.

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Canceling units we have:

$\frac {18 * 1 * 2.54} {24 * 1} \frac {cm} {h} =\\\frac {45.72} {24}\frac {cm} {h} =$

$1,905 \frac {cm} {h}$

Answer:

$1,905 \frac {cm} {h}$

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3 years ago