Car 1 drives 20mph to the south and car 2 drives 30mph to the north. From the frame of reference to car 1 what is the velocity of car 2?

Which of the following can be done to demagnetize a permanent magnet?

Two charges, - q0 and - 4q0 are a distance l apart. these two charges are free to move but do not because there is a third charge nearby.

7. The movement of water molecules from an area of high concentration to an area of low concentration is called? 1. facilitated diffusion. 2. osmosis. 3. exocytosis. 4. endocytosis.

Which of the following is not a way that oil production could potentially affect aquatic viability?

Substance that does not contain any free ions and will not be an electrically conductive medium is what?

Interactive LearningWare 4.1 reviews the approach taken in problems such as this one. A 1800-kg car is traveling with a speed of 14.0 m/s.

Compare the Lagrangian method with the Newton-Euler method in detail.

A plane is flying east at 135 m/s. The wind accelerates it at 2.18 m/s^2 directly northeast. After 18.0s, what is the magnitude of the displacement of the plane?

The same constant force, F, is applied to two blocks. The first block has a mass of M and the second block has a mass of 2M. Both blocks are initially at rest and the force acts on each of them for the same period of time, t.

Which of the following is an example of the strong nuclear force acting in an atom? A. A proton repelling a proton B. A neutron attracting a neutron C. A neutron repelling an electron D. An electron attracting a proton