Apolo player hits a ball with a mass of 0.42 kg with a force of 7.35 newtons.
how does the force the polo player's mallet exerted on the ball compare to the force the ball exerted on the mallet?
a.
the force of the on the mallet is less in magnitude and opposite in direction to the force the ball exerted on the mallet.
b.
the force of the mallet on the ball is greater in magnitude and opposite in direction to the force the ball exerted on the mallet.
c.
the force of the mallet on the ball is equal in magnitude and opposite in direction to the force the ball exerted on the mallet.
d.
the force of the mallet on the ball is equal in magnitude and in the same direction to the force the ball exerted on the mallet.

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.

The least penetrating form of radiation is

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i. e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i. e. include the distance traveled to the first encounter)