The diagram shows a roller coaster track assume that the system is closed at point either roller coaster has just exited the vertical loop which chart best shows the relative amount of potential and kinetic energy of the roller coaster car at point E

What is the measure of a change in an objects velocity?

The least penetrating form of radiation is

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.