Assume that a team of engineers runs a friction test on the car and track. the team finds that the car loses 210 joules of energy over each meter of track. how much energy does the roller coaster lose from friction as it travels from the top of the first hill to the top of the second hill

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Ways that industry and agriculture use physical properties to separate substances

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?