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A 0.90 kg iron horseshoe is taken from a furnace at 890°C and dropped into 3.00 kg of water at 12.0°C. Assuming that no energy is lost by heat to the surroundings, decide the total entropy change of the horseshoe-plus-water system.
A wire is 0.79 m long and 0.77 mm2 in cross-sectional area. It carries a current of 4.1 A when a 2.0 V potential difference is applied between its ends
A ball of mass (m) 0.5 kg is attached to the end of a string having length (L) 0.5 m. The maximum possible value of angular velocity of ball is
A long ladder weighing 100 N is rested against a smooth wall. find the magnitude of the normal force of the wall on the ladder
A solenoid 10.0 cm in diameter and 76.7 cm long is made from copper wire of diameter 0.100 cm, with very thin insulation. The wire is wound onto a cardboard tube in a single layer, with adjacent turns touching each other.
A house painter is standing on a uniform, horizontal platform thatis held in equilibrium by two cables attached to supports on the roof. how large is the force exerted by the right-hand cable
A photon of wavelength 0.14795 nm, traveling due east, is scattered by an electron initially at rest. What is the velocity of the scattered electron
scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. in
Find what is the greatest distance at which these headlights can be resolved as separate points of light on a photograph taken with a camera whose aperture has a diameter of 10.5 millimeter
A tube of glowing gas emits light at 550 nm and 400 nm. In a double-slit apparatus, what is the lowest order 550 nm bright fringe that will fall on a 400 nm dark fringe? What is the corresponding order of the 400nm dark fringe?
The hydrogen spectrum has a red line at 656 nm and a violet line at 434 nm. What angular separation among two spectral lines obtained by a diffraction grating that has 4160 lines/cm? (Suppose that the light is incident normally on the gratings.)
An object is placed in front of a converging lens in such aposition that the lens (f = 13.6 cm) produces a real imagelocated 20.7 cm from the lens. What is the image distance of this new image
A long solenoid has 1400 turns per meter of length, and it carries a current of 3.5 A. Find the torque exerted on the coil
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