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A 4.00*102 g glass coffee cup is 20.0 C at roomtemperature. It is then plunged into hot dishwater at a temperatureof 80.0 C. If the temperature of the cup reaches that of thedishwater, how much heat does the cup absorb? Assume that the masof the dishwater is large enough so that its temperature does notchange appreciably.
There is a uniform magnetic field throughout the region with components Bx = +1.0 T, By = +9.0 T, and Bz = +2.0 T. Calculate the flux through the shaded face of the cube
a sphere with a 2.25 meter radius and a mass of 3.5 kilogram rolls down the inclined plane shown. at the bottom of the
A 6 m board of mass 7 kg is hinged at one end, with a 60 kg block nesting on the board 245 cm from the hings. A force ~F is applied vertically at the other end to lift of the board. Find the force exerted by the hinge
Consider a bar (L=3.00m) is sliding to the right on 2 rails with a velocity (0.75 m/s) towards a resistor (20 ohms), calculate the "Magnetic Braking force"
A car chases a coyote down a road ending in a sheer cliff. The car has a speed of 40.0 m/s and the coyote has a speed of 30.0 m/s. The car blows a siren at 440 Hz and the speed of sound is 340 m/s. What frequency does the coyote hear for the sound..
The light shining on a diffraction grating has a wavelength of 463 nm (in vacuum). How many lines per centimeter does the grating have
Calculate the direction, magnitude and line of action of the vertical and horizontal components of hydrostatic force acting on a surface.
A block of wood has a mass of 3.72 kg and a density of 579 kg/m3. It is to be loaded with lead so that it will float in water with 0.72 of its volume immersed. The density of lead is 1.13 104 kg/m3. (a) What mass of lead is needed if the lead is on t..
My car engine can deliver a maximum of 112 ft-lbf of torque when running at 3450 rpm. How many horsepower is the engine producing at this same time
A 6.5- kg block oscillates with an amplitude of 0.100 m on a light spring of constant k = 16.0 N/m. What is the maximum value of the block's velocity
What is its angular displacement in this time.
A 3000-kg Ferris wheel accelerates from rest to an angular speed of 0.17rad/s in 11s, calculate the net torque on the wheel
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