500 angstrom = ... km

I am an Advanced Open Water Diver. I plan to do three dives. The first dive is a 25-metre/80-foot dive for 22 minutes followed by a 52-minute surface interval.

Which statement best describes how charges behave? Question options: Opposite charges repel against each other and like charges attract to each other. Charges do not interact with each other. Charges do not exist.

The nonreflective coating on a camera lens with an index of refraction of 1.29 is designed to minimize the reflection of 634-nm light. If the lens glass has an index of refraction of 1.

Buses travel at 25 m/s then decelerate steadily. It comes to a complete stop in 40 second. What is its acceleration?

The parking brake on a 2000 kg Cadillac has failed, and it is rolling slowly, at 3.00 mph, toward a group of small children.

A proton in a particle accelerator is traveling at a speed of 0.99c. (a) If you use the approximate nonrelativistic equation for the magnitude of momentum of the proton, what answer do you get?

An object of mass 3 kg, moving with and sticks to an object of mass 2.00 kg with an initial velocity of 3.00 m/s. Find the final velocity of the composite object.

What is the mathematical relationship between frequency wavelength and wave speed?

What is the basic unit of each type of elements

White light is composed of all the colors of the visible light spectrum. The spectrum is usually said to consist of A) red, blue and green B) red, yellow, blue and green C) red, orange yellow, green, and blue D) red, orange yellow, green, blue, and