A tightly wound solenoid is 15 cm long, has 350 turns, and carries a current of 3.0 A. If you ignore end effects, you will find that the value of the vector B at the center of the solenoid when there is an iron core of magnetization M = 1.4 × 10^6 A/m is approximately a) 8.8 mT
b) 1.8 mT
c) 7.0 mT
d) 6.2 mT

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

If a balloon is taken outside on a very cold day, what will occur?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.