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A cup of newly brewed 330 g cofee is to hot to drink when served at 88 degree celcisus.
a) IF you add 60 g of ice at -15 degree celsisus to it. What is the final termpetate Tf of the cofee when it reaches thermal equilibrium?
b) What is the mass of the ice cube needed in order to cool the coffee to a pleasant 50 degree celsisus? assusming specific heat of coffee is 4190 J/kg * C and the specific heat of ice is 2050 J/kg * C. The latent heat of fusion is Lf= 334 x 10^3 J/kg and the latent heat of vaporization of water is Lv= 2.26 x 10^6 J/kg
A 30 g ball of clay is thrown horizontally at 20 m/s toward a 1.7 kg block sitting at rest on a frictionless hi surface. The clayts and sticks to the block. What is the speed of the block and clay right after the collision?
A circular wire loop of radius 13cm carries a current of 3.66 A. It is placed so that the normal to its plane makes an angle of 34.8° with the uniform magnetic field of magnitude 9.70 T.
A set of jumpers cables used to start a car from another car's batterty is connected to the terminals of both batteries. What is the force per unit length on the cables
As you walk across a synthetic-fiber rug on a cold, dry winter day, you pick up an excess charge of -58uc. How many excess electrons did you pick up
Find the speed of the car when brakes were applied.
A projectile is launched straight up at 141m/s. How fast is it moving at the top of its trajectory? Presume it is launched upward at 45 degrees above the horizontal plane. How fast is it moving at the top of its curved trajectory.
A train has 4 locomotives (73 tons each) and 60 coal cars (42 tons each). The train is going down a 2.4% incline, What is the mass of the entire train
A particle known as a pion lives for a short time before breaking apart into other particles. According to this hypothetical person, how far does the laboratory move before the pion breaks apart
Two sound sources radiating in phase at a frequency of 485 Hz interfere such that maxima are heard at angles of 0 and 22° from a line perpendicular to that joining the two sources. Find out the separation between the two sources.
Illustrate the health care delivery component's role in providing services, as well as explain how it contributes to or lacks contribution to the overall management of health care resources.
A playground merry-go-round (uniform disk with mass M=150kg and radius R=2m) rotates on a frictionless axle through its center. What is the kinetic energy of the child-merry-go-round-system
A barge is 15.0 m wide and 75.0 m long and has vertical sides. The bottom of the hull is 1.20 m below the water surface. What is the weight of the barge
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