A.) a rock is dropped from the edge of a cliff 15.0 m high. how long does it take to reach the bottom of the cliff?

-b.) if the rock is projected horizontally from the same cliff with the initial speed of 2.5 m/s, how long does it take to reach the ground?

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.

Ais not a mixture. colloid compound suspension solution

Aseries circuit contains a 30 e resistor, a 20 resistor, and a 10 resistor. the power supply provides 100 v to the circuit the current in the 10 resistor, to two significant figures, is a.