What is its time interval between the re- lease of the ball and the time it reaches its maximum height? The acceleration of gravity is 9.8 m/s2 and the maximum height is 5.7 m . Neglect air resistance. Answer in units of s.

atomic = no of protons.

mass number-atomic number = neutron number

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.

a skateboard rolling across the street - apex