Typically, neurons firing action potentials encode a signal’s intensity by a. changing the size of their action potentials. b. changing the frequency of their action potentials. c. firing at precise moments so as to signal different sized signals. d. sending signals of different sizes down different axonal branches. e. all of the above

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.