Calculate the refractive index of the substance if the speed of light in the medium is 210,000 km/s.

2.43

1.43

0.7

1.89

The first step in handling stress is

What type of simple machine will allow you to change the direction of the resistance? A. a ramp B. a lever C. a pulley D. a wedge

A ball thrown vertically upwards with an initial speed of 30m/s from the top of a cliff falls into the water 10seconds later directly below the cliff. Find 1. How high the ball went above the cliff 2. How high the cliff is, neglecting air resistance

The electrical energy that moves through a surge protector is 1.8 kilowatt-hours. How many watts of power will the surge protector use in one hour?

You just measured a block of wood and obtained the following information: mass = 55.120 g length = 8.5 cm height = 4.3 cm width = 3.3 cm Determine the volume and density of the wood block.

Why do scientist use different types of models to represent compounds

Electronic signals that pulse current in a series of ones and zeros are known as

If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?

List 3 quantities of waves.

Bailey is on the tenth frame of her recent bowling competition and she needs to pick up the last pin for a spare and the first place trophy. She rolls the 7.05-kg ball down the lane and it hits the 1.53-kg pin head on. the ball was moving at 8.