Answer:
3.31m/s
Explanation:
Angular momentum for 3s is



Moment if inertia is


Angular speed
ω = L/I

The speed of each ball is
V = ωL

Answer:
<h2>
False</h2>
Explanation:
Hope this helps! Please consider marking brainliest! Always remember, your smart and you got this! -Alycia :)
I believe the answer is Microwaves (just to clarify, not the oven). They're widely used for communications.<span />
Kinetic Energy = 1/2xmassx(velocity)^2
Input values;
K.E=1/2x7kgx(4m/s)^2
K.E.=56J