04/12/22

Im not sure how to do this question without the masses given
Pendulum A is released from a height of 2.0 m above its lowest point. It swings and, at the moment when the string is vertical, the pendulum collides with block B, which is initially at rest and... more
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04/10/22

A woman pushes a lawnmower forward with a force of 125 N for a distance of 15 m

The force makes an angle of 34° with the horizontal. At the same, a constant 50.0N frictional force on the lawn mower from the ground opposes the motion. Calculate the total amount of work done on... more
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07/17/21

Chemistry 122 d
Calculate the volume of 0.18 M NaOH needed to react completely with 20.0 mL of 0.45 M H2SO4H2SO4(aq) + 2NaOH(aq) -> Na2SO4(aq) + 2H-OH(l)L Lmol/L ... more
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07/12/21

Slove the math step by step
A rock is dropped from a 200 m –high cliff. How long does it take to fall (a) the first 100 m and (b) the last 50 m.
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