What does the index of refraction directly measure?

Soils are made up of a mineral portion an organic portion and air and water what are the three mineral components of soil (check all three) A. Clay B. Bits of plant mineral; dead organisms C. Silt D. Sand

If the maximum time between the emitted and received pulse is 1 / 10 second, what is the farthest distance you could measure with the sensor? (This question requires units.)

Which simple machine belongs to the inclined plane family

Which is a drawback to the extensive use of solar energy? A. It is nonrenewable and usually unavailable at night. B. It produces toxic pollution. C. It requires equipment and installation that are expensive. D. It is available only at night.

Why is the HR diagram important to scientists? The HR diagram shows the composition of stars. The HR diagram shows the shape of stars. The HR diagram groups the stars by their sizes. The HR diagram groups stars by their position in the sky.

A 72-kg fisherman in a 114-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 5.0 m/s.

Roberto creates an animation titled "Flying through an Atom." The animation makes it seem as if the viewer passes all the way through an atom, starting from one side, then through the atom's center, and then leaving through the other side.

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

A submarine that is in the sea what principle is that

1. It takes 26.5 N to pull a 72 kg sled across snow. What is the coefficient of friction? 2. A 565 N rightward force pulls a large box across the floor with a constant velocity of 0.75 m/s. If the coefficient of friction is 0.