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.

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.

Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction