Work in the amount of 280 J is done in lifting an object a distance of 4.0 m in a time. How much force did it take to lift the object?

How do balanced forces acting on a object affect its motion? how do unbalanced forces acting on an object affect its motion?

The atomic mass of an atom is determined by which of the following? A. number of protons in the nucleus. B. number of electrons in the nucleus. C. sum of the protons and neutrons in the nucleus. D. number of neutrons in the nucleus.

The tendency of something to keep moving or stay at rest unless a greater force stops or moves it is called what

Two students are playing hockey with 0.4-N wad of paper. One student hits the wad and it slides across his desk, slowing down at a rate of 0.6 m/s/s. Find the coefficient of kinetic friction between the wad and the desk?

Electromagnetic radiation is: A - energy that is electric and magnetic B - energy that is created by atoms and electricity C - energy that is magnetic and solar D - energy that is created only by the sun

If a car travels at 93 km/h, what rate is it traveling in km/min?

A wire carries a steady current of 2.20 A. A straight section of the wire is 0.750 m long and lies along the y axis within a uniform magnetic field, vector B = 1.70 k T.

All parts of the electromagnetic spectrum share travel at the same speed through empty space. True False

What is the mechanical advantage of the frictionless plane shown below? Inclined plane A. 0.64 B. 1.31 C. 1.4 D. 1.56

What does ice become when it absorbs enough heat energy. C. Frost. D. Liquid