A spring of stiffness k = 500 N/m is mounted between a wall and a 80 kg block as shown. There is no friction on any surface. If the block is subjected to a 500
N force at 60 degrees above the horizontal, determine the normal force acting
on the block and the distance the spring compresses.

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Which governments provide garbage collection services to homes and businesses