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The ceramic coffee cup in the figure below, with m = 135 g and c = 1090 J/(kg · K), is initially at room temperature (24.0° C). If 275 g of 80.3 C coffee and 12.2 g of 5.00° C cream are added to the cup, what is the equilibrium temperature of the system? Suppose that no heat is exchanged with the surroundings, and that the specific heat of coffee and cream are the same as the specific heat of water.
The moon is at a mean distance Dm = 3.84 x 10^5km from the earth; the sun is at a mean distance Ds = 1.496 x 10^8km. The radius of the moon is Rm = 1.74x10^3km; the radius of the sun is Rs = 6.96 x10^5km.
Some planetary scientists have suggested that the planet mars has an electric somewhat similar to that of the earth, producing a net electric flux of 3.63X10^16 N*m/C at the planet's surface.
A barge on the Ohio river is 35 ft wide and 200 ft long with walls which are 12 ft high. What is the mass of the coal the barge is carrying downriver
A 71-kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. what is the normal force exerted by the snow on the skier at point B
A 5kg box is pushed across a level floor with a net force of 50 N in the direction of the displacement of 10m. What is the total work done on the box
Explain how and why the application of the 7 Born Constraints to the solution of Shrodinger's Equation describing bound states (i.e. states with E
Two spheres of mass m1= 3kg and m2= 1.5 kg are given. The lighter sphere is at rest. what is the velocity of each sphere after collision
two equally charged particles are held 3.0 10-3 m apart and then released from rest. the initial acceleration of the
Suppose that 1.4 moles of an ideal diatomic gas has a temperature of 1273 K, and that each molecule has a mass 2.32 × 10-26 kg, How many degrees of freedom does each molecule of the gas have
A current of 48.6 mA exists in a wire for 1.20 minutes. What is the rate that charge passes a point in the wire
A cannon is fired horizontally from atop a 40.0 m tower. The cannon ball travels 145 m horizontally before it strikes the ground.With what velocity did the ball leave the muzzle.
A rocket has a total mass of 1.12 105 kg and a burnout mass of 1.09 104 kg, including engines, shell and payload. Estimate the speed at burnout if gravity isn't neglected
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