A heavy flywheel is accelerated (rotationally) by a motor that provides constant torque and therefore a constant angular acceleration α. The flywheel is assumed to be at rest at time t=0 in Parts A and B of this problem. Find the time t₁ it takes to accelerate the flywheel to ω₁ if the angular acceleration is α.
Express your answer in terms of ω₁ and α.

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Energy flows from the producer level to the level. is called

Convection occurs when thermal energy is transferred by the movement of