A simple compass can be made by placing a small bar magnet on a cork floating in water. Required:
a. What fraction of a plain cork will be submerged when floating in water?
b. If the cork has a mass of 11.5 g and a 22.5-g magnet, made of iron with a density 7.80 g/cm^3, is placed on it, what fraction of the cork will be submerged?
c. Will the bar magnet and cork float in ethyl alcohol?

2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?