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A force of 10N acts on two blocks on frictionless surface.the first block is 3kg, and the second block is 2kg. what is the acceleration of the system?what force does the 3kg block exert on the 2kg block? what force does the 2kg block exert on the 3kg block?
a popgun uses an ideal spring for which k=2000N/m. how high can the gun shoot a 5.0gram projectile
A violin string has a length of 0.360 m and is tuned to concert G, with fG = 392 Hz. (a) How far from the end of the string must the violinist place her finger to play concert A, with fA = 440 Hz? cm from the bridge (b) If this position is to remain ..
A system receives 107 joules in the form of heat energy in a specified process and it produces work of 4*10^6 joules. The system velocity changes from 10km/s to 25 km/s and its elevation changes from 20m to 12m. The mass of the system is 50 kg. Deter..
A 120 granite cube slides down a 45 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 210 steel cube at rest.
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 460 lines/mm , and the light is observed on a screen 1.7 m b..
If two successive overtones of a vibrating string are 280 Hzand 350 Hz, what is the frequency of the fundamental
A handheld digital multimeter (DMM) is used to measure the portential difference accross the first resistor by placing probe leads at each end of this resistor.
A football punter accelerates a football from rest to a speed of 10 m/s during the time in which his toe is in contact with the ball (about 0.17 s)
A string is clamped at both ends and tensioned until its fundamental vibration frequency is 95Hz. what is the lowest frequency at which it will vibrate
A solid sphere of mass m and radius r spins about a horizontal axis with a period T. Find the size of the torque acting on the sphere
A prism is made of glass of unknown RI. A parallel beam of light is incident on a face of the prism. The angle of min deviation is measured to be 40 degree. What is the Refractive Index of the prism
A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 19.6 m above the top of the cliff before falling to the base of the cliff, How high is the cliff
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