11. Which of the following waves is an example of a mechanical wave: light, x-ray, radio or

ocean wave?

two objects with the same mass move with the same speed but in opposite directions. A. Kinetic energies are equal B. Kinetic energies are opposite in magnitude C. Kinetic energies of the higher objects is greater D.

A constant force of 560 n was applied to a rock. If 2700j of energy was used to move the rock, how far did the rock move

Henrietta is going off to her physics class, jogging down the sidewalk at a speed of 2.55 m/s. Her husband Bruce suddenly realizes that she left in such a hurry that she forgot her lunch of bagels, so he runs to the window of their apartment, which

What are two things that turbines have been used for?

A hypothetical planet has a mass of one-half that of the earth and a radius of twice that of the earth. what is the acceleration due to gravity on the planet in terms of g, the acceleration due to gravity at the surface of the earth?

At what rate must electrons in a wire vibrate to emit microwaves with a wavelength of 1.00 mm

A scientific hypothesis can be disproved with

The life cycle of stars may be boiled down into a tug of war, lasting billions of years, between two basic forces. In your own words, describe these forces, and identify which of the two eventually "wins" the battle.

One of the goals of psychology is to predict future behavior or mental processes. Which of the following scenarios best illustrates this goal?

When a chemical reaction occurs, A.) reactants interact to form products with different chemical and physical properties B.) reactants interact to form products with different numbers of atoms C.