A uniform rope of mass 50 kg hangs from a hook. A box of weight 100 N hangs from the rope. What is the tension in the rope at point A?

Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil

At what point does a moving pendulum have the greatest kinetic energy a) on the left b) on the right c) at the bottom d) at the top hurry

Which of the following is best determined by applying the principles of relativity and uncertainty rather than newtonian physics? a.the velocity of a satellite b.the speed of an object moving at close to the speed of light c.the length of an accelerating race car d.the momentum of a plane