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The drawing shows the front and rear sprockets of a bicycle. Assume the chain does not slip or stretch. The radius of the front sprocket is r cm front 10.0 , while that of the rear sprocket is r cm rear 2.0 . A rider is pedaling the bicycle so that the initial angular speed of the front sprocket is 5.9 rad/s.
a. What angular acceleration should be applied to the front sprocket to double the angular speed of the rear sprocket?
b. How much time is required to double the speed of the rear sprocket?
When these two wires are connected in equivalent to the same battery, describe the reasoning of the steps that allow you to find out which of these wires will consume the greater amount of power by warming up and dissipating this energy as heat.
The heat of vaporization of ethyl alcohol is about 200 cal/g. If 2.8kg of it were allowed to vaporize in the refrigerator, how many grams of ice would be formed from 0 °C water.
The catapult on an aircraft carrier can take an aircraft from 0 to 83.1 m/s in 14.5 seconds, at which time the aircraft launches. What is the acceleration of the aircraft when it launches
Suppose he enters the water at a speed of 16.0 m/s via path 1. Explain how fast is he moving on path 2 when he releases the rope at a height of 4.00 m above the water? Ignore the effects of air resistance.
A spaceship of proper length 310 m takes 0.79 µs to pass an Earth observer. Determine the speed of this spaceship as measured by the Earth observer
There are two resistors, R1 and R2, connected in series with an ideal battery. What are the actual voltages across the resistors
A small metal ball is given a negative charge, then brought near (i.e., within a few millimetres) to end A of the rod. What happens to end A of the rod when the ball approaches it closely this first time.
Suppose 1.0 mol of a monatomic ideal gas initially at 10 L and 350 K is heated at constant volume to 700 K, What is the efficiency of the cycle
The four tires of an automobile are inflated to a gauge pressure of 2.10E+5 Pa. Each tire has an area of 0.0267 m2 in contact with the ground. Find out the weight of the automobile.
an initially uncharged electroscope is polarized by bringing a negatively charged rubber rod near the bulb, how many electrons are on the leaf end
a physics instrustor shakes a 2.0 m long alumium rod to create the pattern, find is this a transverse wave or a longtudinal wave
A spring with a force constant of 130 is attached to the backpack and pulled horizontally, as indicated in the figure .If the backpack begins to slide when the spring ( = 130 ) stretches by 2.40, illustrate what is the coefficient of static fric..
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