Compute the temperature of an object which has peak emissions at each of the following wavelengths. Note what kind of light it is (by name of type). (a) 3 meter, (by) 3 cm, (x) 500 nm, (d) 1 nm.

A block moving to the right on a level surface with friction is pulled by an increasing horizontal force also directed to the right.

What happens to gravitational force and electric force as the distance between two charged objects decreases? O A. Gravitational force decreases and electric force increases O B. Gravitational force increases and electric force decreases. O C.

In a chemical reaction, water decomposes to form hydrogen and oxygen. Which term names the water? A. an element B. an atom C. a product D. a reactant

A ball is thrown straight upward from ground level with a velocity of 18m/s How much time passes before the ball strikes the ground? Disregard air resistance.

Which are characteristics of electromagnetic waves? check all that apply. travel in straight lines and can bounce off surfaces travel through space at the speed of light travel only through matter travel only through space can bend around objects

Two kids are on a merry-go-round that is turning at a constant rate. ariel is near the outer edge, and bob is closer to the center. ariel has answer (smaller, the same, or greater angular speed?

Visit this website and locate the element mercury, whose chemical symbol is Hg. Click on the square to read about the history, properties, and uses of mercury. Name three uses for mercury.

Ten seconds after starting from rest, a car is moving at 40 m/s. what is the car's acceleration in meters per second per second?

A student builds a simple circuit and a magnet under one of the circuit wires. When the switch is closed charges flow int the circuit and the wire moves

Cite an example in which a force is exerted on an object without doing work on the object