Answer:a. 24 kg m/s
b. 3/5s
Explanation:
a.impulse is the change in momentum so at first the momentum is zero because the ball was at rest and the final momentum is 1.2kg*20m/s=24 kg m/s
so the impulse would be (24-0) kg m/s=24 kg m/s
b. so the impulse equation is impulse is force *delts time
so 24 kg m/s=40N*t
t=24 kg m/s /40N=3/5 s
You cant skip nothing. All the lessons are important! Sorry about you free time :/
Answer:
force×distance
Explanation:
work is the ability of an object to move a distance as a result of the force being applied
A: objects that shine
Visible: Our eyes detect visible light<span>. Fireflies, </span>light<span> bulbs, and stars all </span>emit<span> visible </span>light<span>. Ultraviolet: Ultraviolet radiation is </span>emitted<span> by the Sun and are the reason skin tans and burns. "Hot" </span>objects<span> in space </span>emit<span> UV radiation as well.</span>
