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

Which perspective believes that behavior is learned through rewards and punishments

You cannot get more work out of any machine than what you put into it. 1) True 2) False

Which part of the ear vibrates at the frequency of sound waves

The equation for distance is d, t How far does a car go in 10 seconds at a speed of 44 m/s?

How does regular participation in sports affect your body?

Determine the total mechanical energy of a 250 g baseball if it has a velocity of 30 m/s when it leaves the pitcher's hand 1.2m above the ground.

When distances were carefully measured from Earth to globular clusters above and below the Milky Way plane (where our view of them is not obscured by interstellar dust and gas), their distribution was found to be

Imagine you transfer heat into a gas. This heat splits up in two different ways: Additional thermal energy making the gas hotter and "fuel" for the gas to do work. Let's suppose, 64% of the transferred heat transforms into thermal energy.

How much heat is absorbed by a 61g iron skillet when its temperature rises from 5oC to 29oC?

Explain the relationship between motion and frame of reference.