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With what tension must a rope with length 2.50 m and mass 0.120 kg be stretched for transverse waves of frequency 40.0 Hz to have a wavelength of 0.750 m?
A person can survive a feet-first impact at the speed of about 12 m/s (27 mi/h) on concrete; 15 m/s (34 mi/h) on soil; and 34 m/s (76 mi/h) on water. Why are there different values for different surfaces.
A 25 gram ball is fired horizontally into a 0.375 Kg catcher arm at rest. How fast was the ball traveling before the impact occurred
A geothermal power plant uses geothermal water extracted at 160oC at a rate of 440 kg/s as the heat source and produces 22 MW of net power.
A block of mass m = 4 kg slides back and forth on a frictionless horizontal track. It is attached to a spring with a relaxed length of L = 4 m, By what length is the spring extended
The combination of an applied force and a friction force produces a constant total torque of 35.2 N · m on a wheel rotating about a fixed axis. The applied force acts for 6.10 s. During this time, the angular speed of the wheel increases from 0 to..
A 10.0-g wad of sticky clay is hurled horizontally at a 110-g wooden block initially at rest on a horizontal surface. what was the speed of the clay immediately before impact
What is the maximum speed the car can have at point B for the gravitational force to hold it on the track.
A 70 kg bicyclist rides his 7.8 kg bicycle with a speed of 16 m/s. How much work must be done by the brakes to bring the bike and rider to a stop.
A car is traveling at 44.0 km/h on a flat highway. what is the minimum distance in which the car will stop
You're using a rope to pull a sled at constant velocity across level snow,with coefficient of kinetic friction 0.050 between sled and the snow. With what force should you pull with the rope horizontal
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. How many revolutions per minute is the sample making
q1. an electric field of 220000 nc points due west at a certain spot. what is the magnitude of the force that acts on a
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