What is the unit and tool to measure the mass of a rock?

A circuit that has only a single path for current to flow through is best classified into which category? A:a series circuit B:an open circuit C:parallel circuit D:short circuit

a fan a car is moving forward on a frictionless surface. if you change the fan speed from high to low what will occur?

If 600 J of work is done in 3 s, what is the power? (Power: P = W/t)

During or after exercise, it is normal for a student to comment that his/her heart feels like it is "beating out of my chest."

A 1kg dart moving horizontally makes an impact with and sticks to a block of wood that is 11kg the two objects then slide on a frictionless surface with a speed of. 8 meters per second what is the velocity of the dart before it hits the wood?

Imagine that you replace the block in the video with a happy or sad ball identical to the one used as a pendulum, so that the sad ball strikes a sad ball and the happy ball strikes a happy ball.

Under what conditions will an object experience a gravitational force? Under what conditions will an object experience an electric force? Under what conditions will an object experience a magnetic force?

A basketball player pushes down with a force of 34 N on a basketball that is inflated to a gauge pressure of 9 x 104 Pa. What is the diameter of contact between the ball! and the floor?

Match these terms with their definitions: 1. unit of electrical resistance ampere 2. unit of electromotive force or electrical potential ohm 3. unit for measuring the strength of an electric current volt 4. unit of electrical power watt

In which is momentum conserved: an elastic collision or an inelastic collision?