3 years ago

Question 17

Physics

1 answer:

9966 [12]3 years ago

3 0

The first one 76 i think that is it

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Mike enters a revolving door that is not moving. explain where and how mike should push to produce a torque with the least amoun

Bingel [31]

Mike enters a revolving door that is not moving. Mike should push at the edge of the door where it is largest distance from the pivot point in order to produce a torque with the least amount of force. Torque is equal to t = force x distance.

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4 years ago

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A large ant is standing on the middle of acircus tightrope that is stretched with tension Ts. The rope has mass per unit length

77julia77 [94]

Answer:

Explanation:

The ant , at some point of time will be standing on the crest of moving wave passing under its feet . At that position the downward acceleration of the ant will be equal to its weight . Hence it will feel weightlessness . So at that time

Acceleration = g

Acceleration at the top position = ω²A where ω is angular velocity and A is amplitude of vibration ( transverse ) of crest .

ω =2 π n where n is frequency of transverse vibration of particles. This angular frequency will be equal to angular frequency of wave travelling on the rope .

frequency of travelling wave

n.= $\frac{1}{\gamma}\sqrt{\frac{T}{\mu} }$