Calculate the efficiency of an engine of the work input is 300 jewels and the work output is 100 rolls

A bobsled team accelerates the sled to go to 150 m/s in 3 seconds from rest. (a) What is the sled's acceleration? (b) What is the distance the bobsled team traveled?

If Earth's axis were tilted by 5° instead of its actual tilt, how would the seasons be different than they are currently?

Which statement is an example of the law of conservation of energy? A soccer ball eventually stops because its energy disappears. When a light bulb is turned on, electrical energy is converted to light and heat.

What is formed when sediment stick together

In the manufacturing of computer chips, cylinders of silicon are cut into thin wafers that are 3.00 in. in diameter and have a mass of 1.50 g of silicon. How thick, in millimeters, is each wafer if silicon has a density of?

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.