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When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, it oscillates at a frequency of 10.7 Hertz. When another object of mass m2 is hung on the spring along with the first object, the frequency of the motion is 4.50 Hertz. Obtain the ratio m2/m1 of the masses.
An object attached to a horizontal spring is oscillating backand forth along a frictionless surface. The maximum speed is 1.25m/s, and its maximum acceleration is 6.89 m/s2 .
a wooden plank of length l and mass m is supported by an axle that passes through its center. a small package of mass
The pilot of an aircraft wishes to fly due west in a 50.0 kilometer per hour wind blowing toward the south. Find what should its speed be relative to the ground
a runner of the 100m dash aims to achieve a 10sec time. he accelerates to his final cruising speed in the first 10m. what is his final cruising speed
A long solenoid has 150 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.40 cm perpendicular to the solenoid axis. The speed of the electron is 0.056 c (c = speed of light). Find the current i in the solen..
the emissivity of non-polished gold is about 0.47. suppose a non-polished solid golden sphere has a radius of 0.2 m and
A small object of mass 1.90×10−2 kg andcharge 3.2 μC hangs from the ceiling by a thread. Asecond small object, with a charge of 4.2 μC isplaced 1.1 m vertically below the first charge. Find theelectric field at the position of the upper charge due..
An airplane is sent on a rescue mission to help a stranded explorer near the South Pole. The plane cannot land, but instead drops a supply package of mass m = 58 kg while it is flying horizontally with a speed of vp = 116 m/s.
An MSU linebacker of mass 112.0 kg sacks a UM quarterback of mass 84.0 kg. Just after they collide, how fast was the linebacker moving
General relativity says that the total orbital energy of the binary system consisting of two neutron stars will decrease over time through the emission of gravitational waves. If this happens slowly sufficient that the orbit stays circular, response ..
An 80-kg person hiking across a large, level plain in Zion National Park comes across a pair of large boulders. The hiker's guidebook says they have masses of 3.2 Mkg and 9 Mkg, respectively. The distance among their centers of mass is 100 meters.
Determine the dimentions (in cm) of a rectangular aluminum block (also 40 cm long) that would have the same resistance between the farthest opposing sides as the silver block (part a)
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