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Sphinxa [80]
3 years ago
6

Select all that apply so it’s not just one answer. please and thanks :))

Physics
1 answer:
qwelly [4]3 years ago
7 0
Using sources that are peer reviewed
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A helicopter and a jet airplane must work against gravity in order to fly. Which one flys faster
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4 years ago
PHYSICS!
Allushta [10]

Answer:

Friction is useful in some cases like walking and cycling ..

but it is unwanted in machines as it create unwanted sounds and heat .,due to which we loss energy

Explanation:

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Define torque qualitatively and quantitatively.
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When you use a wrench to tighten or loosen a nut on a bolt, you are applying torque. It is measured in units of force times distance.  A force of F newtons pulling on a handle of L meters in length would supply a torque of F L newton-meters. More technically, torque is the vector cross product of force times perpendicular distance from the object, F x r = F r sin @
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0.085m/s²

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