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The drive train of a bicycle includes wheels 67.3 cm indiameter and pedal cranks 17.5 cm long. The cyclist pedals at asteady angular rate of 76.0 rev/min. The chain engages with a frontsprocket 15.2 cm in diameter and a rear sprocket 7.00 cm indiameter.
(a) Calculate the speed of a link of the chain relative to thebicycle frame.
(b) Calculate the angular speed of the bicycle wheels.
(c) Calculate the speed of the bicycle relative to the road.
Review Conceptua lExample 8 before solving this problem. Suppose unpolarized light of intensity 251 W/m2 falls on the polarizer in the figure, and the angle inthe drawing is 25.0°. What is the light intensity reaching the photocell?
In a certain automobile engine with an efficiency of 21.2%, combustion of gasoline in one cylinder releases 505 J of heat. Find the work done by the system of gasoline vapor and air on the surroundings during one cycle
What is the electric potential energy of the electron as it is at midpoint and at 14cm from 5 charge.
An elevator is moving upward at a constant speed of 2.50 m/s. A bolt in the elevator ceiling 3.00 mabove the elevator floor works loose and falls. How long does it take for the bolt to fall to the elevator floor
in a harmonic pendulum, the lengths are increasing monotonically; the lengths are measured so that in a defined set of oscillations (i.e. 20 cycles in 20 seconds), what are a set of lengths that would work
A circular coil of wire of 200 turns and diameter 3 cm carries a current of 3 A. What is the torque on the coil
Describe the difference between an ionic bond and a covalent bond. Give an example of a compound that exhibits ionic bonding. Give an example of a compound that exhibits a covalent bond.
a race car makes two and a half laps around a circular track in 5.1 min. What is the car's angular speed
An RL circuit has a 5 k resistor and a 1mH inductor. This circuit is driven by a 100 Hz sine wave with 1V amplitude. What is the amplitude of the current in the circuit
A pump flows 100 gal/min of water. The inlet pressure is 0 psig and the outlet pressure is 20 pisg. How much electricity (kW) is required to power the motor
Two cylindrical metal rods-one copper, the other lead-are connected in parallel with a temperature of 22.0 C at one end, what is the diameter of the copper rod
q1. an aluminium cup of 180 cm3 capacities is totally filled with glycerin at 18deg c. how much glycerin in cubic cm
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