Answer:
You can use work to add kinetic energy to a system or to increase potential energy in the system.
Explanation:
Potential energy stored in any system can be released as kinetic energy. Kinetic energy can be transformed to do work or to increase potential energy.
hope this helped
1) the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
2) Several feet of concrete or a few inches of dense material (such as lead) are able to block radiation.<span>
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The height of the ball (ft), measured upward from the ground is
s(t) = 16t² + 64t + 80
where t = time when the ball is in the air.
When the ball hits the ground, s = 0. The time(s) when this occurs is given by
16t² + 64t + 80 = 0
Divide through by 16.
t² + 4t + 5 = 0
(t - 1)(t + 5) = 0
t = 1 or t = -5 s
Reject negative time, so that
t = 1 s
The velocity function is
v(t) = 64 + 32t
When t = 1 s, obtain
v(1) = 96 ft/s
Answer:
The ball hits the ground with velocity 96 ft/s.
