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Q. Four identical masses of 2.5kg each are located at the corners of a square with 1.0 m sides. what is the net force on any one of the masses?
Q. A bucket of water of mass 14.1 is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.250 with mass 12.1 . The cylinder pivots on a frictionless axle through its center. The bucket is released from rest at the top of a well and falls a distance 10.3 to the water. You can ignore the weight of the rope.
A 380-N, uniform, 1.50 m bar is suspended horizontally by two vertical cables at each end. A small object of weight 520 N is placed distance 0.5 m from the cable A. What is the tension in cable A.
Direction of the surface winds What is the expected composition
At t = 0, a particle leaves the origin with a velocity of 9 m/s in the positive y direction and moves in xy plane with a constant acceleration of (-2 i -4 j) m/s2. At t = 1 s, what is the velocity of particle in the x direction.
A small block with a mass of 0.170 kg is attached to a cord passing through the hole in a frictionless, horizontal surface .The block is initially revolving at a distance of 0.50 m from the hole with a speed of 0.80 m/s. The cord is then pulled from ..
Two narrow slits 50 micrometers apart are illuminated with light of wavelength 500 nm . What is an angle of the m=2 bright fringe in radians? in degrees.
The coefficient of expansion of iron and zinc
Obtain a relation between the equilibrium lattice distance
Then the driver sees a red light up ahead at next intersection, and starts slowing down at the constant rate. The car stops at the red light, 180 {rm m} from where it was at t = 0.
A shell, fired from a cannon, has a muzzle speed (the speed as it leaves the barrel) of 800 ft/s. The barrel makes an angle of 45o with the horizontal and, for ease; the barrel opening is assumed to be at ground level.
How much horizontal force should a sprinter of mass 57.0 exert on the starting blocks to produce this acceleration.
What is the distance delta y between the two points that you observe? suppose that the plates have length d , and use e and m for the charge and the mass of the electrons, respectively.
A particle undergoes a displacement Δr of magnitude 57 m in a direction 25° below the x axis. Express Δr in terms of the unit vectors x and y.
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