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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?
an insulated container is filled with a mix of 400 g of water at 20 C and 60 g of ice at 0 C. assuming negligible heat is exchanged with the container, what is the temperature of the mixture when it reaches thermal equilibrium.
how to Compute the work done by this field on a charge.
When light of a certain waveleght is incident normally on a certain diffraction grating the line of order 1 ia at a diffraction angle 25 Degrees
What is the electric field strength between the disks. What is the speed of the box at the end of the 5.7-s interval.
Bohr Model An electron is in the n=5 state of hydrogen to what states can the electron make transitions, what are the energies of the emitted radiations
Consider a 7 solar mass main sequence star, Estimate its luminosity in solar luminosities and how long (in years) it could maintain its luminosity through gravitational collapse
(a) How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 6.00 cm2? (b) Find the maximum charge if bakelite is used between the plates instead of air.
a meter rule hangs motionless supported at 30cm mark. It has a 0.02kg mass hanging from the 0meter mark
A Carnot engine operates with reservoirs at 135°C and 378°C, and 23600 J of heat are transferred into the engine from the hot reservoir during each engine cycle
find out the speed of the test charge. How many electrons should be removed from A and put onto B to make the electrostatic force that acts on each object an attractive force whose magnitude is 23.6 N.
Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +3.7 m/s. Find the ratio m1/m2 of the masses of the particles
The satellite has an orbital period around the Earth that is the similar as that of the Moon, 27.3 days. How far away from the Earth must this satellite be placed.
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