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A 180 g copper bowl contains 220 g of water, both at 20.0°C. A very hot 300 g copper cylinder is dropped into the water, causing the water to boil, with 5.65 g being converted to steam. The final temperature of the system is 100°C. Neglect energy transfers with the environment.
(a) How much energy (in calories) is transferred to the water as heat?
(b) How much energy (in calories) is transferred to the bowl?
(c) What is the original temperature of the cylinder?
a 3.0 pf air capacitor consists of two parallel plates that have surface charge densities of 1.0 ncmm2. if the
A sphere of radius R1=24.5cm and mass M=1.20kg starts from rest and rolls without slipping down a 30 degree incline that is 10.0m long. Calculate its translational and rotational speeds when it reaches the bottom
two wires are welded together end to end. the wires are made of the same material, but the diameter of one is twice that of the other. what is the length of the thick wire
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the spontaneous emission wavelength
A step-down transformer (turns ratio = 1:8) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. What is the current in the primary coil
A person is riding a bicycle, and its wheels have an angular velocity of 12.1 rad/s. What is the anguar acceleration (in rad/s2) of each wheel
A 10.0g ball of clay traveling east at 1.50m/scollides and sticks together with a 60.0g ball of clay traveling north at 8.50m/s. What is the speed of the resulting ball of clay
Let there be a 6 volt energy source and a resistor of 10 ohms in a circuit. Determine the current and power
In a women's 100-m race, accelerating uniformly, Laura takes 2.00 s and Healan 3.00 s to attain their maximum speeds, What is the acceleration of each sprinter
a punted football is observed to have velocity components vhorizontal 17 ms to the right and vvertical 2.5 ms
Graphing either versus or versus gives a straight line. In the graph shown above, we chose to plot on the vertical axis, find the magnitude of the crankshaft's angular acceleration
a block of mass m collides elastically with a block of mass m. before the collision m is moving with velocity vx v and
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