Electromagnetic waves have the ability to travel through empty space because they do not require a medium to travel through.

True or False?

HURRY! Which lists the correct steps that occur when using a diffraction grating to bend light? diffracted wavelengths reach the eyes → different wavelengths of light bend at different angles → the eyes see different colors → light strikes the

1) Which of the following statements about physical models is not true? a. Physical models are often three-dimensional representations. b. Physical models are used to represent an object or event. c.

Sonja, the skater rolls down a ramp 50 meters and finishes in 5 seconds. what is her speed?

Which of the following statements is true about ions? a. Cations form when an atom gains electrons. b. Cations form when an atom loses electrons. c. Anions form when an atom gains protons. d. Anions form when an atom loses protons.

Ow do quantum numbers relate to electrons?

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.

In a frictionless environment, which energy stays the same? 1. Kinetic Energy 2. Potential Energy 3. Internal Energy 4. Total Mechanical Energy

In what order do the earth, sun, and moon line up in a totla solar eclipse

17. Ice has a water. albedo than land or O A. similar O B. opposite O c. higher O D. lower

When you put your hands on a cold object like a glass of ice water your hands become?