If the ball hits olaf and bounces off his chest horizontally at 8.50 m/s in the opposite direction, what is his speed vf after the collision? express your answer numerically in meters per second.

If element X has 33 protons, how many electrons does it have?

Explain how machines can be useful if the output is always less than the input work

write a one or two summary paragraph discussing this experiment and the results use tye following questions 1 according to your data was your hypothisis correct be sure to refer your data when answering this question 2 summarize ang difficulties or

A student wants you to demonstrate that an electric current will produce a magnetic field. Which set of objects could be used to demostrate this? A) A battery, a coil of wire and a compass. Eliminate B) A compass, some paper clips and a battery.

What kind of energy can be transferred? energy

Three rocks, each of varying mass and volume, are released from a window at the same time. The window is at height h above the ground.

The gravitational force extend by a large, object, such as Earth is

What besides mass and gravity, what other factor affects gravitational potential energy?

A satellite is in a circular orbit about the Earth at a distance of one Earth radius above the surface. What is the speed of the satellite? (The radius of the Earth is 6.4 * 106 m, and G = 6.67 * 10-11 N⋅m 2 / kg2.)

What is the meaning of the washing motion of the younger monk? is it the same when dobbins does it?