Light travels at 3.0 * 108 m/s in a vacuum and slows to 2.0 * 108 m/s in glass. What is the index of refraction of glass?

Which field of study would be most useful for a person who wants to grow safe food crops?

Which of the following waves have the highest energy? A. Gamma Waves B. Microwaves C. Radio Waves D. Visible Light

How would the moon appear from earth if the moon did not rotate?

Two laptop computers each have a mass of 2 kg. If they are 0.5 m apart on a desk, what is the gravitational force between them? G = 6.67 * 10-11 N⋅ (m/kg) 2

In an inelastic collision involving an isolated system, the final total momentum isA) more than the initial momentum. B) exactly the same as the initial momentum. C) less than the initial momentum.

Which of the following do not involve a direction? Check all that apply. A. Time B. Velocity C. Distance D. Acceleration

What does deltaX mean in physics?

Which activity involves using fossil fuels directly or indirectly? 1) eating fresh fruit for a snack 2) cooking hot dogs on a campfire 3) using crayons to color 4) walking to school

Which of the following objects would have the most inertia? A. A sphere with a radius of 5 cm and a mass of 34 grams. B. A sphere with a radius of 4 cm and a mass of 15 grams. C. A sphere with a radius of 8 cm and a mass of 27 grams. D.

A boy slides a book across the floor using a force of five and over a distance of 2M what is the kinetic energy of the book after he slides at assume there is no friction