Explanation:
d = Diameter of wheel = 27 cm
r = Radius = 
m = Mass of wheel = 800 g
= Initial angular velocity = 
Equation of rotational motion

Moment of inertia is given by

Torque is given by

The torque the friction exerts is -0.0037406448 Nm
For more information on torque and moment of inertia refer
brainly.com/question/13936874
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D. Riding a bike uphill
Increased height = increased potential energy
Answer: A wave can be thought of as a disturbance or oscillation that travels through space-time, accompanied by a transfer of energy.
Explanation: