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A 350 g ball is attached to a vertical spring. The spring constant is 41 When released from rest, how far does the ball fall before being brought momentary stop by the spring?
Assume that the brakes in your car create a constant deceleration, regardless of how fast you are going. If you double your driving speed, how does this affect the time required to come to a stop
Packages in an automobile parts supply house are transported to the loading dock by pushing them along a roller track with very little friction. At the instant shown packages B and C are at rest and package A has a velocity of 6 ft/s. Knowing that..
The electric field midway between two equal but opposite point charges is 735 N/C, and the distance between the charges is 19.7 cm. What is the magnitude of the charge on each
a ball is thrown horizontally from the top of a building that is 15.67 m high with a speed of 23.47 ms. neglecting air
What is a vertical velocity of the ball
A jet engine emits sound uniformly in all directions, radiating an acoustic power of 3.23 × 102 kW. If the intensity of the sound at a distance of 40.3 m from the engine is 15.8 W/m^2 calculate the corresponding sound intensity level in dB
in an rlc circuit the rms current is 7.00 a the maximum voltage 230. v and the current lags the voltage by 53 degrees.a
The springs of a 1200 kg car compress 5.0 mm when its 68 kg driver gets into the driver's seat. If the car goes over a bump, what will be the frequency of vibrations
a binary star system has a period of 7.7e6 7700000 s. it is noted that one star is moving twice as fast as the other
an atom with mass m emits a photon of wavelength a.a what is the recoil speed of the atom?b what is the kinetic energy
Put a 10 V battery with a 10 ? internal resistance in series with a switch: hook this up to a 100 ? resistor in parallel with a 2 H inductor. Find the initial voltage across the inductor when the switch is opened
A frequency generator (a device that produces sinusoidal signals whose frequency and amplitude can be independently set) is used to power a horn. The frequency is set to 2000HZ, and for a particular amplitude the sound intensity is measured to be..
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