For the following two reactions, find the q value and the threshold kinetic energy, assuming in each case that the lighter particle is incident on the heavier particle at rest:

a) 7li + p > 7be + n

b) 12c +p > n + 12n

plot the kinetic energy of the outgoing neutron as a function of the incoming proton kinetic energy for three different angles, at least one of which must show double-valued behavior.

Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33

The air that we breath is made mostly of which gaseous molecule

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)