A spider twirls a fruit fly around in a circle with radius 17.6 cm at the end of a web. If the velocity of the fly is 110 cm/s, what is the centripetal acceleration of the fly? m/s2.

A scientific theory is an idea supported by research that attempts to explain existing observations or predict new ones. true or false.

The gravitational potential energy of a contracting interstellar cloud a. stays the same at all times. b. gradually transforms into other forms of energy. c. gradually grows larger. d. could grow larger or smaller, depending the cloud's rotation.

When an object gains or loses electrons, it becomes ... ?

An ice cube placed in microwave melts in five minutes and it takes 3.50 kj of energy to melt it. what is the power of the microwave?

A circuit with which components has a current with the greatest voltage?

Listening to the radio, you can hear two stations at once. Describe this wave interaction

The volume of a gas is reduced when the temperature is decreased

Describe the Dark Ages of our universe.

Two boxes, P and Q, are at rest on a frictionless horizontal surface. A light, flexible cord connects them. The mass of P is greater than the mass of Q.

Determine the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic field. The electric field and the magnetic field are also perpendicular to each other and have magnitudes 7.7 x 10^3 V/m and 7.