A bicycle wheel is rotating with an angular velocity of 15 rad/s. The wheel has a mass of 4.9 kg and a radius of 48.6 cm. Treat the wheel as a solid thin disc. a. Calculate the rotational kinetic energy of the wheel in J.
b. Calculate the angular speed the wheel must have if its rotational kinetic energy is doubled, in rad/s.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?