Estimate the force on a 145 gram baseball which is traveling at 50 MPH to the right, hits a bat, stays in contact with it for 0.1 second, and 'rebounds' to the left at 50 MPH . Express the result in newtons and in pounds.

F = 65N = 15lb

Explanation:

Please see attachment below.

c) up is the direction the magnetic force is acting on the charge.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.