If you push on a railroad boxcar with a force of 200 N and it doesn't move, you can conclude that

A 1400 kg van is traveling at 24m/s when the driver takes her foot off the gas pedal. The car eventually rolls to a stop after 225 meters. Find the force of friction acting on the van.

Which statement best describes a wave? a. a collision of particles b. a disturbance that carries energy c. a movement of fluids d. a group of electrically charged molecules

A horse moved a sleigh 1.00 kilometer by applying a horizontal 2000 newton force on its harness for 45.0 minutes. What is the power of the horse

A force of 125 N is applied to a 50 kg. Mass. What is the acceleration of the mass?

Solve the quadratic equation using the quadratic formula 5x2 + 8x + 2 = 0.

A 2.25-kg block is released from rest on a ramp of height h. when the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.

Which of the following are steps for balancing chemical equations? Check all that apply. ] A. Multiply the reactants to get the products. B. Change subscripts. O C.

1. Why does the water vapour in clouds condense? 2. Explain why you can see clouds but not see the water vapour in the air

What are some similarities between electricity and gravity?

What's the difference between solids and liquids?