The speed of light in a vacuum is approximately 2.99 * 108 m/s, and the speed of light through a piece of glass is approximately 1.97 * 108 m/s. What is the index of refraction for the piece of glass?

What is the potential energy of a 3 kg rock sitting at the top of a 21 meter high cliff?

What is volt equivalent to? ohm A) amps B) degrees C) ohms D) volts

During World War II, France, the United States, Russia, and Great Britain composed the: Allied forces Axis forces Dual Alliance

What agency approves food packaging

A car has a 12-v battery. if we hook it up to a 36 ohm resistor, what current will flow?

Which of the following is a vector quantity (a) mass (b) speed (c) time (d) acceleration

A 85-kg astronaut (including spacesuit and equipment) is floating at rest a distance of 11 m from the spaceship when she runs out of oxygen and fuel to power her back to the spaceship. She removes her oxygen tank (3.

Find the specific gravity of the rose quartz. Specific gravity = density of of water. What are the units for specific gravity?

A ball of mass 5.0kg is lifted off the floor a distance of 1.7m. 1. What is the change in the gravitational potential energy of the ball? 2. Now you release the ball from rest, and it falls to the floor.

What is the device to break a circuit called?