How much force is needed to accelerate a 2 kg car at a rate of 12 m/s

Your family is moving to a new house. While lifting the box 1.5 m straight up you exerted a force of 200 N for 1 second. How much work is required?

A 10.0-m-long copper wire with cross-sectional area 1.25 * 10-4 m2 is bent into a square loop, and then connected to a 0.25-V battery. The loop is then placed in a uniform magnetic field of magnitude 0.19 T.

Which of these can be considered a system? a computer a car a bicycle pedal a pencil a coffeemaker

A car is travelling at a velocity of 15 m/s due north speeds up uniformly to a velocity of 30 m/s in 3 seconds. calculate its accelartion.

A child pulls a sled up a snow covered hill. The child does 405 J of work on the sled. If the child walks 15m up the hill, how large of a force must the child exert?

Which of the following statements is/are true? Check all that apply. Check all that apply. The work done by a conservative force depends on the path taken. A potential energy function can be specified for a conservative force.

Which is not a characteristic of the jovian planets?

Why is color not a reliable way to identify rocks and minerals

When stopping at a railroad crossing, you should be no closer than?

Imagine that you're standing in a large room when a loud noise is made. You begin hearing a series of echoes. Which characteristic of sound best explains what just happened?