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A block of mass m = 0.31 kg is set against a spring with a spring constant of k1 = 532 N/m which has been compressed by a distance of 0.1 m. Some distance in front of it, along a frictionless surface, is another spring with a spring constant of k2 = 374 N/m.
Part (a) How fast v, in meters per second, will the block be moving when it strikes the second spring?
a soil below the water table has a density of 120 lb/ft^3 and a void ratio of .82. determine the specific gravity of solids
Two window washers, Bob and Joe, are on a 3.00 m long, 405 N scaffold supported by two cables attached to its ends. what are the forces on each cable
Make a drawing of a metal rod that has length 12cm and a total mass of 70g including two metal loops at both ends, which go around two metal poles. find the magnitude of the magnetic field in the region of the rod
Unpolarized light passes through two polaroid sheets. The axisof the first is vertical, and that of the second is at 25.0° to the vertical. What fraction of the initial light is transmitted
question what is the maximum torque on a coil with a magnetic moment of 5.6 a.m2 when it is placed at an angle of 90
A 10 kilogram piece of metal (specific heat of .04 cal/g.oC) having a temp of 87oC is added to .3 kilogram of water having a temp of 23oC. Estimate the final equilibrium temp of the system
Suppose that 7.00g of a nuclide of mass number 105 decays at a rate of 6.14 x 1011 Bq. What is its half-life
A space explorer A sets off at a steady 0.95c to a distant star. After exploring the star for a short time, he returns at the same speed and gets home after a total absence of 80 years (as measured by earth-bound observers). How long does A's clock s..
It takes 2.80 s for a small ball with a mass of 0.120 kg released from rest from a tall building to reach the ground. Calculate the height from which the ball is released
A 3000 flask is initially open while in a room containing air at 1 and 20 . The flask is then closed and immersed in a bath of boiling water. When the air in the flask has reached thermodynamic equilibrium, flask is opened and air is allowed to esc..
A capacitor initially with a voltage of 10v is connected to a voltmeter of internal resistance of 2 Mega Ohms . After a time of 4 sec the voltmeter reads 5.0 volts.
A hair drier uses 14 A at 121V. It is used with a transformer in England, where the line voltage is 231 V. What should be the ratio of the turns of the transformer (primary to secondary)?
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