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A Carnot engine has an efficiency of 0.361, and the temperature of its cold reservoir is 406 K. (a) Determine the temperature of its hot reservoir. (b) If 5950 J of heat is rejected to the cold reservoir, what amount of heat is put into the engine?
The yellow light from a helium discharge tube has a wavelength of 587.50. When this light illuminates a certain diffraction grating it produces a first-order principal maximum at an angle of 1.050.
An elastic cord is 66 cm long when a weight of 66 N hangs from it but is 86 cm long when a weight of 76 N hangs from it. What is the "spring" constant k of the elastic cord.
A ship sets out to sail to a point 212 km due north. An unexpected storm blows the ship to a point 156km due east of its starting point. How far must it now sail to reach its original destination.
A car is stopped for a traffic signal. When the light turns green, the car accelerates, increasing its speed from 0 to 4.50 m/s in 0.852 s. What are the magnitudes of the linear impulse and the average total force experienced by a 65.0 kg passenger i..
A constant torque of 21.4 N•m is applied to a grindstone whose moment of inertia is 0.125 kg•m2. Using energy principles, determine the angular speed (in revolutions per second) after the grindstone has made 19 revolutions. (Avoid friction.) Do no..
Draw vectors indicating the normal force. suppose that the weight of the femur is negligible compared to the applied downward force.
A 180, 48.0 cm-diameter turntables rotate on frictionless bearings at 70.0. A 15.0 block sits at the center of turntable. A compressed spring shoots the block fundamentally outward along the frictionless groove in the surface of the turntable.
A 110 granite cube slides down a 45 degree frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest. How high above the table should the granite cube be released to give the steel cube a..
Universal beam section: bending moment, maximum stress, radius of curvature, A universal beam section has a second moment of area about its neutral axis of 6487 cm4 and its overall depth is 305 mm
What is the speed of each ball as it strikes the ground? How far apart are the balls 0.700 s after they are thrown.
A train is travelling up a 4.40 incline at a speed of 3.30 when the last car breaks free and begins to coast without friction. How long does it take for the car to come to rest? How far does the car travel.
The frequency doubled output of a Nd3+ YAG laser has a wavelength of 532nm. If each pulse of light has a total energy of 0.550J and the repetition rate of the laser is 30Hz, how many photons does the laser emit at 532nm in 3 minutes.
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