Aroller coaster car has a mass of 290. kilograms. starting from rest, the car acquires
3.13 × 10^5 joules of kinetic energy as it descends to the bottom of a hill in 5.3 seconds.
calculate the height of the hill. [neglect friction.] [show all work, including the equation and substitution
with units.]

Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia

What is the increase in density of a medium due to wave travel?

Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)