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A 0.465 kg wood block is firmly attached to a very light horizontal spring (k = 165 N/m) . It is noted that the block-spring system, when compressed 5.0 cm and released, stretches out 2.3 cm beyond the equilibrium position before stopping and turning back. What is the coefficient of kinetic friction between the block and the table?
A uniform cylinder of radius 10 cm and mass 13 kg is mounted so asto rotate freely about a horizontal axis that is parallel to and3.2 cm from the central longitudinal axis of the cylinder.
an electron that has a velocity withxcomponent 2.9 x 106 ms andycomponent 3.7 x 106 ms moves through a uniform magnetic
A tungsten wire has a radius of 0.070 mm and is heated from 20.0 to 1330 oC. The temperature coefficient of resistivity is ? = 4.5 x 10-3 (Co)-1, How long is the wire
A cup of coffee is on a table in an airplane flying at a constant altitude and a constant velocity. The coefficient of static friction between the cup and the table is 0.170 .
A 91 g arrow is fired from a bow whose string exerts an average force of 115 N on the arrow over a distance of 78 cm. Illustrate what is the speed of the arrow as it leaves the bow?
A 65 kg trunk is pushed 6.4 m at constantspeed up a 30° incline by a constant horizontal force. Calculate the work done by the applied horizontal force
A spherical balloon is made from a material whose mass is 3.00kg. The thickness of the material is negligible compared to the1.6 m radius of the balloon. Find the absolute pressure of the helium gas
Assume the equation x = At3 + Bt describes the motion of a particular object, Determine the dimensions of the derivative: dx/dt
a charge of 23.9 c is at the origin. when charge q is placed at 2 m along the positive x axis the electric field at 2 m
A 85 kg window cleaner uses a 14 kg ladder that is 5.9 m long. He places one end on the ground 3.4 m from a wall, find the angle (relative to the horizontal) of that force on the ladder
One of the weapons considered for the "Star Wars" antimissile system is a laser that could destroy ballistic missiles. What laser beam intensity will produce such a field
An electromagnetic plane wave is traveling through a vacuum along the positive z-axis. At a particular point in space at one instant in time the electric field vector is E=i(6V/m) + j(6 V/m).
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