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The amplitude of a driven harmonic oscillator reaches a value of 25.0 F0/m at a resonant frequency of 400 Hz . What is the Q value of this system?
ball a is dropped from the top of a building of height h at the same instant that ball b is thrown vertically upward
A rifle with the barrel length of 62cm fires a 12g bullet with a horizontal speed of 380m/s. The bullet strikes a block of wood and penetrates to a depth of 14cm. What resistive force (assumed to be constant) does the wood exert on the bullet? How lo..
A single conducting wire is shaped into a circular loop with a diameter of 5.0 cm. At first, the wire is oriented so that its plane is perpendicular to a magnetic field of 0.50 T pointing straight up.
A 10000 N car comes to a bridge during a storm and finds the bridge washed out. How fast should the car be traveling just as it leaves the cliff in order to clear the river and land safely on the opposite side
Water is boiling in a pan at sea level on a stove. During 10 minutes of boiling, it is observed that 200 grams of water has evaporated. Then the rate of heat transfer to the water is what is kJ/min?
How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 if the magnification is 8X
To push a 24 kg crate up a frictionless incline, angled at 19° to the horizontal, a worker exerts a force of 99.5 N, What is the total work done on the crate
A harpsichord string of length 1.32 m and linear mass density 24.0 mg/m vibrates at a (fundamental) frequency of 457 Hz. What is the frequency of the sound wave in air produced by vibration of the string
A 2.85kg bucket is attached to a disk-shaped pulley of radius 0.121m and mass 0.842kg . If the bucket is allowed to fall, What is the angular acceleration of the pulley
1)A crate of potatoes of mass 19.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.82 and μk = 0.29. Find the frictional force (magnitude and direction) on the crate if the crate is sliding d..
a highway patrol officer on the ground uses a radar gun to measure the speed of a suspects car to be 60 ms. a patrol
A 20kg suitcase is being pulled with constant speed by a handle that is at an angle of 22degrees above the horizontal. what is the force F applied to the handle
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