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A ceramic coffee cup with m=0.113 kg and ccup=1090 J/(kg.°K) is initially at room temperature (24°C). If 225 g of 80.3°C coffee and 12.2 g of 5°C cream are added to the cup, what is the equilibrium temperature of the system in °C? Assume no heat is exchanged with the surroundings and that the specific heat of cream and coffee is the same as water (cwater=4186 J/(kg.°K)).
An ideal gas expands at a constant total pressure of 2.5 atm from 3.45 L to 6.70 L. What is the total work done on the gas in the process
You have an open tube that is 1.3m long. what is the fundamental frequency of the wavelength of the tube
question suppose a 0.4kg mass traveling at 50msec hits an elastic bumber system with a spring constant of 3500nm how
A college student is working on her physics homework in her dorm room. Her room contains a total of gas molecules. As she works, her body is converting chemical energy into thermal energy at a rate of 125 . If her dorm room were an isolated system (d..
If the minimum angle between the total angular momentum vector and the z axis is 32.31° (in a single-electron atom), what is the total angular momentum quantum number
a transformer has N^1 =350 turns and N^2 =2000 turns. what voltage is developed across the secondary coil?
a stick of uniform density with mass m 8.3 kg and length l 0.8 m is pivoted about an axle which is perpendicular to
In the Bohr model of the hydrogen atom, an electron in the 1st excited state moves at a speed of 2.19 *10^6 m/s in a circular path having a radius of 5.29*10^-11 m
an object 60cm tall is placed at different location in front of a concave mirror whose radius of curvature is 50cm.
A 5,20 g bullet moving at 672 m/s strikes a 700 g wooden block at rest on a frictionless surface. What is the speed of the bullet-block center of mass
A fisherman standing on the edge of a pier hooks a fish on the surface of the water, and reels in the fishing line at a constant 0.50m/s. If the fisherman's fishing rod is a height of 3.0 m above the water, at what speed is the fish moving (horizonta..
If Cassie's near point is 110 cm, what's the power of the glasses if it helps her gain back the normal near point
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