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A spinning flywheel has rotational inertia I = 417 kg·m2. Its angular velocity decreases from 19.5 rad/s to zero in 320 s due to friction. What is the frictional torque acting? Take positive to be "with the flywheel's rotation", and negative to be "opposite the flywheel's rotation"
A 1.00 liters vessel contains a monatomic gas under STPconditions. if 32.0J OF ENERGY is added to the gas (at constant volume) what is the new temperature of the gas
The disk in a CD player does not rotate at a constant rate, but spins at a rate determined by a control circuit so that the linear speed of the track being read is constant, what will be its rotation rate at the end
an object and lens positioned to form a well-focused, inverted image on a viewing screen. What happens to the image on the screen
What is the minimum uncertainly in the speed of an electron that is known to be somewhere between 0.065 nm and 0.30 nm from a proton.
If the detector moves toward the source, vd is positive; if the source moves toward the detector, vs is positive. What frequence is detected by a stationary train
Element X decays to element Y with a half-life of 0.77 s. Initially there is a sample of pure X and after 2.31 s there are 7g of Y. What was the mass of the original sample
A fan is running at 898 rpm when the power goes out. It makes 1,311 complete revolutions before it finally stops. What was the angular acceleration
An object moving to the right at 0.8c is struck head-on by a photon of wavelength lambda, moving to the left. Determine the ratio of the object's mass after the collision to its mass before the collision
An automobile emits 20 lbs of CO2 per gallon of gasoline burned. how many billions of lbs of CO2 are emitted every year
A 3 meter long cylindrical support beam (diameter 1 cm) increases in length by 3 mm. how much tension does the beam experience
A snowmobile climbs a hill at 15 mi/hr. The hill has a grade of 1 ft rise for every 40 ft. How fast will the snowmobile move downhill
Calculate the momentum of a 17m^3 of air (density of 1.3kg/m^3) hitting a sky diver traveling 52 m/s
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