A current of 12 amps is measured in a circuit with a total resistance of 9.0 ohms. What is the size of the voltage source that supplies this circuit?

What do all types of waves on the electromagnetic spectrum have in common

How much heat is needed to raise the temperature of 8g of water by 18oC?

A 0.25kg rubber ball is released from a height of 10m and is allowed to bounce repeatedly. Each time the ball strikes the ground, ten percent of the ball's kinetic energy is lost in the collision.

Temperature is a measure of how much the atoms in a substance are moving. Why is a substance hotter in the gas state than in the liquid state?

Calculate the power rating of a home appliance (in kilowatts) that uses 8 amps of current when plugged into a 120-volt outlet.

The objects listed are placed at the top of a ramp and roll down to the bottom without slipping. Assuming that there is no air resistance, rank them in order from fastest average rolling speed to slowest. a. large marble b. basteball c.

How does the force due to gravity on Mars compare to the force due to gravity on Earth?, and Using Newton's Second Law, explain how a rocket can have an increase in acceleration over time.

Consider two air-filled parallel-plate capacitors with circular plates. Capacitor 1 has a distance between plates d and plate radius R. Capacitor 2 has a distance between plates 2d and plate radius R/2.

Which of the following would not increase the velocity of a sound wave in air? A. increasing the temperature of the air. B. lowering the density of the air. C. lowering the humidity of the air. D.

Is minerals can be solids or liquids