Bicycle caliper brakes consist of rubber pads mounted in rigid metal "shoes." the normal force applied by a bicycle caliper brake pad to the wheel rim is about 4.00 × 10 2 n . the contact area of the brake pad is approximately 4.0 cm × 0 .70 cm , with the long dimension parallel to the rim’s rotation. the pad is 1.0 cm thick. the coefficient of kinetic friction between the rubber pad and the aluminum rim is 0.50. given that the shear modulus of the rubber is 0.30 mpa, calculate the deformation angle φ of the brake pad
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Physics, 21.06.2019 15:50
The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change
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Physics, 21.06.2019 21:00
Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?
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Physics, 21.06.2019 23:20
In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.
Answers: 1
Physics, 22.06.2019 06:30
Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.
Answers: 2
Bicycle caliper brakes consist of rubber pads mounted in rigid metal "shoes." the normal force appli...
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