The electric motor of a model train accelerates the train
The electric motor of a model train accelerates the train from rest to 0.640 m/s in 22.0 ms. The total mass of the train is 530 g. Find the average power delivered to the train during its acceleration. W
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a man pushing a crate of mass m 920 kg at a speed of v 0870 ms encounters a rough horizontal surface of length script
the nucleus 60co decays by the emission of an electron b 2 energetic gamma rays also accompany this decay and are used
a 270-kg child on a 100-m-long swing is released from rest when the ropes of the swing make an angle of 250deg with the
a 46-ft-tall girl stands on level ground the sun is 41deg above the horizontal how long is her
the electric motor of a model train accelerates the train from rest to 0640 ms in 220 ms the total mass of the train is
a long solenoid that has960turnsuniformly distributed over a length of0390m produces a magnetic field of
a 57-kg block is pushed 40 m up a vertical wall with constant speed by a constant force of magnitude f applied at an
transverse waves on a string have wave speed v8ms amplitude a00700 m and wavelength lambda 0320 m the waves travel
a youngs interference experiment is per- formed with blue-green argon laser light the separation between the slits is
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