A brick is tossed upwards. A student plans to use the conservation of kinetic and gravitational potential energy to find the maximum height above ground level the brick will reach. Which information is unnecessary for the student to know. A. The bricks mass
B. The vertical speed of the brick
C. The gravitational constant
D. The height above ground that the brick is released

33: i think it’s b

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.