A merry-go-round has a mass of 1415 kg and a radius of 6.4 m. How much net work (in J) is required to accelerate it from rest to a rotation rate of 1.00 revolution per 7.00 s? Assume it is a solid cylinder.

Electric energy is generated at a nuclear power plant using which type of nuclear reaction

Which of the following is a scalar quantity? A.) 330 m/s east B.) 45 mph down C.) 55m D.) 100 feet per second north

Suppose you are jumping on a trampoline. At your maximum height, your potential energy is (highest or lowest) and is (highest or lowest). your kinetic energy

What does the atomic mass of an atom tell us? How much the atom weighs The number of electrons in the atom Which row the element is in on the periodic table The number of energy levels in the atom

An astronaut (mass of 100 kg, with equipment) is headed back to her space station at a speed of 0.750 m/s s but at the wrong angle. To correct her direction, she fires rockets from her backpack at right angles to her motion for a brief time.

What are the units of speed or velocity

List the colors of visible light in order of decreasing frequency physics

You can identify a pure substance if you know it's?

A rod of mass M and length L can rotate about a hinge at its left end and is initially at rest. A putty ball of mass m, moving with speed V, strikes the rod at angle θ from the normal and sticks to the rod after the collision.

A satellite with a mass of 2,000 ㎏ is inserted into an orbit that is twice the Earth' s radius. W hat is the force of gravity on the satellite? The radius of the Earth is 6380 km, and the mass of the Earth is 5.98 X 1024 kg a. 2,000 N h.