Choose the BEST answer to the following: Lift a 100-N crate with an ideal pulley system by pulling a rope downward with 25 N of force. For every 1-m length of rope pulled down, the crate rises (a) 25 cm. (b) 25 m. (c) 50 cm. (d) None of these.

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A: here the acceleration is zero,the angle of elevation is,  

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A: Step 1Sawdust is the powdered form of wood.

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A: A thermal or Dewar flask is a storage vessel that provides insulation to its contents from the surro...

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A: Step 1It is given that