When the change in momentum occurs over an extended period of time, the force of impact is:?

two ocean liners with masses 10.0 million and 20.0 million kilograms are 50.0 meters apart. How far apart are the two ships if the force beteren them is 1.0 N?

A substance is round in one container and has a volume of one liter. In a much larger container, the substance is rectangular but still has a volume of one liter. What state of matter is the substance in?

Two equal mass balls (one red and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position.

Why would an atomic nucleus give off a particle?

1. an arrow is fired directly horizontal off a cliff that is 15.0 meters tall with a velocity of 60.5m/s. A. how long is the arrow in the air? B. what range (Δx) of the arrow?

Which equation best expresses the first law of thermodynamics, assuming Q is heat, U is internal energy, and W is work? A.ΔW = ΔQ + ΔU B.ΔW = ΔU - ΔQ C.ΔQ = ΔU+W D.ΔU=Q - W

Why are the action and reaction forces described by Newton's third law of motion excluded in the free-body diagram of an object?

The small depression inside the bend of the elbow is the

If r = KL/d2 find L to the nearest tenth foot if r = 2.5 ohms, k = 10.8 and = 85 mil

A 1500 kg car accelerates uniformly from rest to reach 10.0 m sin 5.00 s. Determine (i) the average power delivered by the engine.