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Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.5m diameter and a mass of 270 kg. Its maximum angular velocity is 1500 rpm. How much torque does the flywheel exert on the machine?
What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 375nm
The velocity in a certain flow field is given by the equation V=(3x^2+1)i - 6xyj. Determine the expressions for the two rectangular components of acceleration.
An air parcel occupied by an ideal gas (T1 = 255 K, V1 = 1500m3, m1 = 1680 kg) collides and mixes with a second air parcel occupied by a second ideal gas (T2 = 280 K, V2 = 1200 m3, m2 = 1392 kg). Assuming the specific heat capacities of the gases ..
A transformer with 340 turns in its primary coil and 30 turns in its secondary coil is designed to deliver an average power of 1390 W with a maximum voltage of 67 V
A grating has 600 rulings per mm and is 6.0 mm wide. What is the smallest wavelenght interval that can be resolved in the third order at ? = 500 nm? How many orders can be seen? Assum normal incidence of light on the grting throughout.
A trap door, of length and width 1.45 m, is held open at an angle of 65.0° with respect to the floor. what is the torque exerted on the trap door by the rope
Two circular disks spaced 0.50mm apart form a parallel-plate capacitor. What are the diameters of the disks
You're caught running a red light on Hwy 316. Attempting to impress the skeptical patrol officer with your physics knowledge, If you had been traveling that fast and the light actually was yellow, what color would it have seemed to you
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown
A charged sphere of mass 2.5x10^-5 kg and net charge of 6.0x10^-9 C hangs from a silk thread, what is the magnitude of the charge dentist on each plate
a heat engine operates between a hih temp reservoir at 610K and low temp reservoir at 320K. find the net change in entropy as a result of this cycle
Suppose a friend asks to examine the 10.0 kg box you were Given, hoping to guess what is inside; and you respond, Calculate the magnitude of the upward force FN exerted by the table on the box
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