A 2.40 kg frictionless block is attached to an ideal spring with force constant 316 N/m . Initially the block has velocity -4.00 m/s and displacement 0.200 m . Find its speed.

State the right hand rule of the direction of magnetic field in a conductor carrying current

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.