An atom's mass number equals the number of

Can you make the work output of a machine greater than the work input?

A large beaker of water is placed on a scale, and the scale reads 40 N. A block of wood with a weight of 10 N is then placed in the beaker. It floats with exactly half of its volume submerged.

In which situation is chemical energy being converted to another form of energy?

What does fitness mean to you?

Why was Copernicus's heliocentric model not believed until gailileo and Kepler provided more evidence?

Critical thinking! Applying Concepts A desk exerts an upward force to support a computer resting on it. Does this force do work? Explain.

When an inclined plane is used, A. the mechanical advantage increases as the height increases. B. a smaller force is exerted over a longer distance. C. a negative mechanical advantage can result. D. a greater force is exerted over a shorter distance

A 4-kg cat is resting on a bookshelf that is 3m high. What is the cats gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8m/s squared

If a 100 N net force act on a 50-kg car, what will the acceleration be

According to the modern classification system, which list is written correctly from least specific to most specific?