Some metal conductor has a resistance of 12ohm. When plugged into a circuit, the amount of heat 144J is released in 12s. What is the voltage at the ends of the conductors?

If you were making a tool used to handle live electrical wires, which class of materials would you most likely use? ASemimetals BMetalloids CNonmetals D Metals

If an astronomical light source were moving toward us, then what would be observed? (a) a blue shift (b) a shift toward longer wavelengths (c) a shift toward lower frequencies (d) a sonic boom

A projectile is shot from the surface of earth by means of a very powerful cannon. if the projectile reaches a height of 100.0 km above earth's surface, what was the speed of the projectile when it left the cannon?

A PERT chart a. is a numeric counterpart to the Gannt chart. b. shows the variance of the critical path only. c. is based on alpha distribution. d. shows the variance of the critical path based on the alpha distribution e.

A famous physics tale is about a rich man who was found dead. He was stuck in the middle of a frozen lake where the ice was completely frictionless, making it impossible to walk.

The airbag inflates and deflates quickly so

Two conducting spheres are each given a charge Q. The radius of the larger sphere is three times greater than that of the smaller sphere.

A solenoid with a ferromagnetic core is

When Cannon and Washburn measured stomach contractions with a balloon, they found that?

An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6 newtons per kilogram. What would she weigh on Mars?