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a torque of 10Nm is applied to a uniform disk shaped flywheel. the flywheel has a mass of 20kg and a radius of 0.5m. at t=0, the flywheel is at rest. how much energy is stored in the flywheel at the end of 20 seconds?
A copper vessel of mass 1000gm contains 500 gm of water at 50 degrees Celsius. An ice cube of mass 100 gm at temperature -30 degrees Celsius is dropped into this vessel. Does the ice melt? What is the final temperature?
An aluminum cube 10 cm on a side is subject to shear stress. A force of 40,000 N acts on each of four faces. Calculate the shear strain
The system shown below has frictionless pulleys and the string have negligible mass. what is the speed of the objects when they are at the same height
A cat is running at 8.0 m/s and trying to catch a mouse, who has a tenth of the mass of the cat. What is the speed of the mouse
A 4.80-A current runs through a copper wire of DIAMETER 2.050 mm and through the filament of a light bulb to which the wire is attached. What is the current density in the copper wire
two positive point charges q 80 nc and q 45 nc are held at rest one directly above the other a distance 17 cm apart.
an object with a mass of 10.0 kg is at rest at the top of a frictionless inclined plane of height 8.00 m and an angle
a proton traveling with a velocity of 2.6 times 106 ms due east experiences a magnetic force that has a maximum
two narrow slits 0.328 mm apart are illuminated by light of wavelength 600. nm. the light falls on a screen 1.58 m
The ideal gas model is valid if?
there are four charges each with a magnitude of 1.88 microc. two are positive and two are negative. the charges are
A cylindrical container (open at the top) is 1.0 m tall andcontains mercury to a certain depth, d. The rest of thecylinder is filled with water that is on top of the mercury. If the pressure at the bottom of the cylinder is two atmospheres,what is..
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