A 36N force applied vertically upwards on an object causes it to accelerate at 2.0m/s2. What is the object's mass?

When a muscle contracts, it performs work. It does this by A) converting chemical energy to mechanical energy. B) converting mechanical energy into heat energy. C) converting mass into energy. D) creating energy.

Which term best describes a question that can be tested?

Would the density of a person be the same on the surface of the moon and on the surface of the earth

Can a compound be separated by physical means?

Sig figs are digits read directly from the measuring instruments plus one more digit which is By the observer

How to find final velocity given mass and initial velocity only?

What charge do electrons have? Negative Positive Neutral

What do you suppose would cause an atom to lose an electron?

Calculate the average speed of spacecraft orbiting mars

Two small spheres spaced 20.0 cm apart have equal charge. how many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57 * 10-21 n?