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Through 0.21 s, a wheel rotates through an angle of 2.12 rad as a point on the periphery of the wheel moves with a constant speed of 2.62 m/s. What is the radius of the wheel?
Steam locomotives have an eff of 17% and operate with hot steam temp of 425C. A.) what is the cold temp B.) what is the max eff if the cold temp 150C
a runner of the 100m dash aims to achieve a 10sec time. he accelerates to his final cruising speed in the first 10m. what is his final cruising speed
A circular saw is powered by a motor. When the saw is used to cutwood, the wood exerts a torque of 0.80N · m on the saw blade. If the blade rotateswith a constant angular velocity of 20 rad/s the work done on the blade by the motor in 1.0 min is:
q 1- how much pressure would be necessary to compress a quantity of mercury by 0.015 percent?2- two metal plates are
Determine the kinetic and potential energies when thedisplacement is one half the amplitude. For what value of the displacement does the kineticenergy equal the potential energy?
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 265 kg · m2, What is the new angular speed of the merry-go-round
A gyroscope flywheel of radius 2.83 cm is accelerated from rest at 14.8 rad/s2 until its angular speed is 2760 rev/min. What is the radial acceleration of this point when the flywheel is spinning at full speed
q1. the loaded cab of an elevator has a mass of 3000 kg and moves 181 m up the shaft in 23 s at constant speed. at what
in a youngs double-slit experiment the wavelength of the light used is 550 nm in vacuum and the separation between the
A person is nearsighted and can clearly focus on objects that are no farther than 2.6 m away from her eyes. What is the focal length of the borrowed glasses
Using the periodic boundary condition, ?k(x+L) = ?k(x) and noting that e(i2pn)=1, determine the allowed values of k in terms of L and an integer n. Are negative values of n allowed?
The warranty on a new tire says that an automobile can travel for adistance of 96 000 km before the tire wears out. The radius of thetire is 0.31 m. How many revolutions does the tire make beforewearing out?
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