What is the magnitude of the final velocity of the combined cars?

Which underlying assumption is made when creating models for the universe?

Which of the following correctly describes the Big Bang theory? The entire universe was formed in a massive explosion that threw all the material that makes up the universe out in all directions at a great speed.

When a 40-n force, parallel to the incline and directed up the incline, is applied to a crate on a frictionless incline that is 30 above the horizontal, the acceleration of the crate is 2.0 m/s2, up the incline. the mass of the crate is:?

Consider a 4-mg raindrop that falls from a cloud at a height of 2 km. When the raindrop reaches the ground, it won't kill you or even bruise you because its terminal velocity is just 10 m/s.

What is the strength of the electric field ep 9.0 mm from a proton?

When the velocity of a mass on a spring is zero, the acceleration is at

Which is a disadvantage of using wind as an energy source? Check all that apply. It may be unreliable. It is not naturally occurring. It produces a lot of waste. It requires wires to carry electricity. It generates large amounts of electricity.

One step in the production of hydroelectric power involves

A pot is heated on a stove. The water begins to boil rabidly. Which explains why the water is boiling fast?

A galvanometer can be calibrated to read electric A) current B) Voltage C) either of these D) neither of these