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A 1200kg disc with radius 2.0m is rotating at 1500 rev/min when an 800 m/N braking torque is applied to the wheel. How long does it take for the disk to come to rest?
question a 1200 kg cannon fires a 100.0 kg cannonball at 97 ms. what is the recoil velocity of the cannon? assume that
Discuss the cause and different mechanisms available. Recognize and discuss the flow control techniques on which they are based? Determine the pros and cons of each?
Diagnostic ultrasound of frequency 3.03 MHz is used to examine tumors in soft tissue. (a) What is the wavelength in air of such a sound wave? (b) If the speed of sound in tissue is 1340 m/s, what is the wavelength of this wave in tissue? (Take the sp..
A thin layer of oil (n=1.50) floats on water. Destructive interference is observed for reflected light of wavelengths 480 nm and 600 nm, Find the two minimum thickness of the oil film
two charged pith balls are suspended on very light 10.5 cm strings. each has a mass of 11.0 g. in equilibrium the total
A cannonball (20kg) is shot from a cannon(200kg) with a velocity of 20m/s. what is the backwards velocity of the cannon
Two identical small insulating balls are suspended by separate 0.22-m threads that are attached to a common point on the ceiling. Determine the tension in the threads
A block is projected up a frictionless inclined plane with initial speed v0 = 3.47 m/s. The angle of incline is ? = 32.1°.
When the trigger of the launcher is pulled, the spring accelerates the 50-g car horizontally to x= 0, where the car loses contact with the spring and exits the launcher. What work is done by that spring in accelerating the car?
A well-thrown ball is caught in a well-padded mitt. If the deceleration of the ball is 2.10×104 m/s2, what was the initial velocity of the ball
Find the force P that must be applied to a piston of area 12.10 cm2 to produce sufficient fluid pressure to support a car weighing 10,801 N by means of a column of fluid of cross sectional area 275 cm2
A 1500 -kg automobile travels at a speed of 75 -km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop.
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