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Consider using the apparatus shown in given Figure (a), known as the Joule paddle wheel, to determine the specific heat at constant atmospheric pressure.
The paddle wheel is driven by a slowly falling weight, and both have a temperature of 14.5°C.
As a result of the work done by the 0.427 kg mass that falls 1.00m, the temperature of 1kg of water rises 1°C. Calculate cp.
You have been charged with operating "the gravitron" at the carnival. What minimum rotation speed should you reach before dropping the floor?
A submarine is 300. m horizontally out from the shore and 100m. beneath the surface of the water. How long does it take for the laser bream to reach the building
A solid cylinder of radius r1 = 3.0 cm, length h1 = 6.0 cm, emissivity 0.87, and temperature 35°C is suspended in an environment of temperature 64°C. What is the cylinder's net thermal radiation transfer rate
A person who weighs 684 N steps onto a spring scale in bathroom, and the spring compresses by 0.518 cm. (a) What is the spring constant? (b) What is the weight of another person who compresses spring by 0.328 cm.
A magnifying glass uses a converging lens with a focal length of 14.5 cm. It produces a virtual and upright image that is 3.1 times larger than the object. How far is the object from the lens
Consider an RC circuit in which the capacitor is being charged by a battery connected in the circuit. After a time equalto four time constants, what percentage ofthe final charge is present on the capacitor?
a 125 lb person falls from height of 10 ft. he bends his legs so that he comes to a stop over a distance of 2 ft, What is the avg. force that his legs have to exert to stop him
What is the speed of an electron with a de Broglie wavelength of 0.140nm and 0.140nm
three concentric conducting spherical shells have radii a, b, and c such that a
A car traveling initially at 53.5 km/h crashes into a brick wall. The front end of the car collapses, Find the horizontal force exerted on him by the seat harness
Think an event with space-time coordinates t=2.0s x=2.5*10^8 m/s relative to frame S. Discover the value γ that will be required to transform coordinates among frames S and S'. Use c=3*10^8 m/s for the speed of light in vacuum
how long would a 2.90 kw space heater have to run to put into a kitchen the same amount of heat as a refrigerator
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