A 900 kg car accelerates 2 m/s2 to the right. What is the net force acting on the car?

1800 N to the left

450 N to the right

450 N to the left

1800 N to the right

A 10.0 kg crate is pushed with a horizontal force of 40 N. The crate moves at a constant velocity of 3.0 m/s. What is the value of the friction force on the crate? 10 N 100 N 40 N 70 N

Which word describes a system in which energy moves freely in and out, but no matter enters or leaves?

Four children pull on the same toy at the same time yet there is no net force on the toy how is that possible

Why is absolute dating more accurate than relative dating? A) Relative dating uses the half-life of an element B) Absolute dating uses the half-life of an element C) Relating dating compares the placement of fossils on a large time scale D) Absolute

Which statement is not true about electrons? Electrons have a negative charge. The orbit of electrons around the nucleus is like a cloud. The path an electron moves on is not very straight. The basic unit of matter is the electron.

Explain how wavelength and frequency are important when determining the type of light.

Suppose that you had an electrically charged stick. If you divided the stick in half, each half would have half the original charge. If you split each of these halves, each piece would have a quarter of the original charge.

Technician a says that when measuring a rotor's thickness variation, you should measure the rotor in a minimum of five to eight places around the face of the rotor.

What acceleration will you give to a 25kg box if you push it with a force of 85N

Lightning occurs when there is a flow of electric charge (principally electrons) between the ground and a thundercloud. assume that the rate of charge flow in a lightning bolt is about 24000 c/s and this lasts for 105 µs or less.