izzyandersons2635 izzyandersons2635
  • 20-01-2023
  • Physics
contestada

A crane lift a pallet of brick to the top of a 80 m building, requiring 400 kJ of energy. What wa the ma of the pallet?
A kier, with a ma of 70 kg, loe 140 kJ of energy when kiing down the lope. What wa the height which the kier decended

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