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In an experiment of specific heat there are mixed 196 g of aluminumat 107°C with 52.3 g of water at 18.6 °C.
(a) Calculate theequilibrium temperature. Find the change in entropy of
(b) aluminumand
(c) water.
Calculate the change in entropy of the system.
A projectile is launched with a momentum of 200 kg • m/s and 1000 J of kinetic energy. What is the mass of the projectile
A rectangular loop lies next to a long straight wire, on the same plane. Both wires carry a current of 3A. find the magnitude and the direction of the net force on each loop
A playground merry-go-round of radius R = 1.40 m has a moment of inertia I = 255 kg · m2 and is rotating at 9.0 rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round
which the tortoise wins in a photo finish? suppose that, when moving, both animals move steadily at their respective maximum speeds.
in a autocollimation experiment a thin convex lens is placed 25 cm from a pinhole that acts as a point source of light.
the hour hand and the minute hand of big ben a that elizabeth tower clock in london are 2.70 m and 4.50 m long and have
Calculate the wavelength of light in vacuum that has a frequency of 1.8 107 Hz. 16.6666 Correct: Your answer is correct. m What is its wavelength in benzene? (The index of refraction of benzene is 1.501.) Correct: Your answer is correct. m
A box of mass 2.1 kg is on a horizontal surface. The coefficient of friction between the box and the surface is 0.32. Find the acceleration of the box
In a home laundry dryer, a cylindrical tub containing wet clothes is rotated steadily about a horizontal axis, what rate of revolution is needed
A compound microscope uses a 73.0mm lens as the objective and a 2.1cm lens as the eyepiece. find the total magnification produced by the microscope
in a heart pacemaker a pulse is delivered to the heart 83 times per minute. the capacitor that controls this pulsing
A space station is moving in a circular orbit around the Earth. It makes one revolution in 90 minutes. How high above the Earth's surface is the space station
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