If a laser beam is shot straight up from the bottom of a pool so that it intersects the pools surface in a perpendicular fashion, what will the angle of refraction be in the air? A) 0

B) 45

C) 90

D) This cannot ve measured

How is power calculated? multiply force and displacement divide force by displacement multiply work and time divide work by time

You are on the roller blades on top of a small hill. Your potential energy is equal to 1,000.0 joules. The last time you checked your mass was 60.0 kilograms. What is your weight in newtons?

A car battery seems to be malfunctioning (not providing the proper voltage and current to start your car).

When the driver touches A Car steering wheel on a hot day heat is transferred to the driver's Hands by

Why just indirect evidence be used to study the structure of atoms?

Under what condition (s) will an object be in equilibrium? Notice that equilibrium in physics has a broader definition. (A) Only if it is moving with constant velocity. (B) Only if it is at rest.

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly

If a force of 15 newtons [N] is applied to a surface and the pressure is measured as 4,000 pascals [Pa], what is the area of the surface in units of square milimeters [mm2 ]?

An engineer has the task of producing an aluminum alloy with a density of 3.0 grams per cubic centimeter. She comes up with the perfect alloy and saves a sample of it. Which mass and volume measurements correspond to this sample? 7 g and 2.