Determine the kinetic energy of a 625-kg roller coaster car that is moving with a speed of 18.3 m/s

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

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.