A rock is thrown down with an intial speed of 10.0 m/s from a bridge in the water. it takes 2.75 s for the rock to hit the water? find the speed of the rock as it hits the water, and how high is the bridge above the water?

Donde esta la orilla del universo?

Work is done on a ball when a soccer player kicks it. Is the player still doing work on the ball as it rolls across the ground? Explain

X does 500 joules of work in 1/6 hours and Y does 600 joules of work in 1/3 hours. what will be the ratio of the power delivered by X and Y.

How can the IMA of a first - class lever be increased? Decrease the length between the applied effort and the pivot. Increase the length between the applied effort and the pivot.

If a net force of 5.0 N forward acts on a 0.60 kg toy car what is its acceleration

Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. A 200 kg dolphin leaps straight up to a height of 7.8 m.

An example of renewable energy resource is ... A - uranium B - Wind C - natural gas

The power of a 1.5-volt alkaline cell varies with the number of hours of operation. A brand new D-cell can deliver as much as 13 A through a copper wire connected between terminals. Determine the power of a brand new D-cell.

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?

Describe the possible long term impact of a catastrophic event