A small box of mass 0.021 kg compresses a spring (k = 420 N/m) a distance of 0.070 m and is released. It travels on a horizontal, frictionless track and then enters a vertical loop. The loop has a radius of 0.24 m. What is the speed of the block when it reaches the top of the loop?

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave