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A block with a mass of 1 kilogram is attached by a light weight, but strong rope to a second block with a mass of 2 kilogram. The rope runs over a pulley (which is ideal, the pulley has a mass less sheave and a frictionless axle), thus that both masses hang from the pulley. The heavier block accelerates downwards, and the lighter block accelerates upwards. Obtain the tension in the rope between the masses?
A set of crash tests consists of running a test car, moving at a speed of 12.8 m/s, into a solid wall. Calculate the size of the average force which acts on the dummy
The concrete encloses one steel reinforcing rod with cross-sectional area 1.00cm2. The rod joins two strong end plates. The cross-sectional area of the concrete perpendicular to the rod is 47.5 cm2. Young's modulus for the concrete is 3.00 x 10^10 N/..
A certain athlete consistently throws a javelin at a speed of 28meter per second. Find his best distance in meter
A block is dropped onto a spring with a spring constant, k, of 27 n/m. the block has a speed of 2.2 m/s just before it strikes the spring. what is the increase in potential energy of the spring
Assume some dog tags create a sound with a frequency of 1118 Hz at rest. You place these dog tags on a greyhound dog. The dog runs towards you and moves with a speed of 13.7 m/s with her tags clanging together.
The displacement of a wave traveling in the positive y direction id D(y,t) = 52 cm sin(5.5^-1y-72s^-1t). What is the velocity? What is the wavelength? What is the amplitude?
In the ground state of hydrogen, the uncertainty in theposition of the electron is roughly 0.10 nm. how fast is the electron moving
An airplane flies eastward and accelerates uniformly. At one position along its path it has a velocity of 33.3 m/s. Find the airplane\'s acceleration
two billiard balls of equal mass undergo a perfectly elastic head-on collision. if one balls initial speed was 2.50 ms
A rope is wrapped around a wheel of diameter 50 cm. The wheel is mounted. With friction less bearings on an axle during its center. Find the linear acceleration of the falling block
the engine of a model rocket accelerates the rocket vertically upward for 2.0 s as follows at t 0 the rockets speed is
If an enclosed volume of ideal has is heated, raising its temperature from 10 c to 20 c, by what factor does the pressure change
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