What is the minimum force required to increase the energy of a car by 84 J over a distance of 38 m? Assume the force is constant. Group of answer choices

84 N

2.2 N

3200 N

120 N

0.45 N

Under normal temperature and pressure conditions, what type of rock could be formed from weathering in erosion of metamorphic rock

Identical marbles are released from the same height on each of the following four frictionless ramps . compare the speed of the marbles at the end of each ramp. explain your reasoning

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?