A magnetic field line must

a. go on forever.

b. form a closed loop.

c. have a north and south pole.

d. be created by a permanent magnet.

The temperature of a monatomic ideal gas remains constant during a process in which 7470 J of heat flows out of the gas. How much work (including the proper + or - sign) is done?

What happens when a negatively charged object A is brought near a neutral object B?

What is held together by intermolecular forces? atoms charged particles molecules compounds

Electric fields exist at a distance from two [blank] spheres. a) magnetic b) neutral c) charged

Explain how active transport, atp, energy, and concentration gradients are related.

A spring (k = 790 N/m) has a length of 48 cm when zero net force is applied to it. What will its length be when 230 N of force is applied to stretch it? Question 3 options: 3.4 m 0.77 m 3.9 m 0.29 m

Inert gas used to make bright city lights True or False

A boulder on top of a cliff has a potential energy of 12400J. How high above is the boulder?

If the graph represents speed what is measured on the x and y axes

It is difficult to lift a heavy stone than the lighter one on the earth, why?