Answer:
Answer A is correct
Explanation:
New clouds can form anywhere, so long as there is water vapor in the air.
Gravitational Potential Energy (GPE) = 9.8m/s² (rate of gravity) x 8,000,000kg of water x 50.0m
GPE = 3,294,000,000 Joules (J) which is also the change in GPE
Answer:When we toss a ball into the air, its height increases and thus, its potential energy increases as well.
Explanation:Because when a ball is tossed up, its potential energy increases, reaches a maximum height and then starts decreasing as the ball falls back to the ground.
Answer:
Explanation:
Let Torque due to friction be
F
Net torque
= 46 - F
Angular impulse = change in angular momentum
=( 46 - F ) x 17 = I X 580
When external torque is removed , only friction creates torque reducing its speed to zero in 120 s so
Angular impulse = change in angular momentum
F x 120 = I X 580
( 46 - F ) x 17 = F x 120
137 F = 46 x 17
F = 5.7 Nm
b )
Putting this value in first equation
5.7 x 120 = I x 580
I = 1.18 kg m²