Which is the best example of the transfer of heat through radiation

Aballet student who learns with the of his instructor is demonstrating learning.

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: