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A glass tumbler of 200 g mass and 5 cm inside diameter is full to a depth of 10 cm with tap water whose temperature is 10 degrees C, and at 50 g of ice 0 degrees C are then added. At the end of an hour, it is noticed that the ice has just finished melting. What was the average rate, in calories per second, at which heat flowed into the glass from its surroundings?
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays
Transmission electron microscopes that use high-energy electrons are employed in many areas including the study of biology samples (like a virus) and nanoscience research and development (allow particles and carbon nanotubes, for example).
while taking photographs in death valley on a day when the temperature is 50.0degc bill hiker finds that a certain
Suppose you hear a clap of 4.63 seconds after seeing the lightning stroke. how far are you from the lightning stroke
A double-slit interference experiment is performed by light from a laser. The separation among the slits is 0.53 mm, and the first-order maximum of the interference pattern is at an angle of 0.059? What is the wavelength of the laser light?
Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 31.2 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is at a pressure of 101.3 kPa
What is the percent change in momentum of a proton that accelerates from 0.49c to 0.90c? What is the percent change in momentum of a proton that accelerates from 0.90c to 0.98c?
A person pushes a 17.2-kg shopping cart at a constant velocity for a distance of 24.2 m on a flat horizontal surface. Determine the work done by the pushing force
A pacific north west home has a solar photovoltaic (PV) system that produces 10.45 MWh of usable electricity peryear. Their PV system is tied to the electrical grid, and all theenergy it produces is credited against their energy home consumption.
My neighbor opened the turner circuit of his radio and noticed that it uses a 4.5 ?H inductor together with a variable capacitor that ranges from 0.32 pF to 1.28 pF
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 200 N/m. Two small charged objects are attached to this spring, one at each end, determine the possible algebraic signs
A heavy stone of mass m is hung from the ceiling by a thin 8.25-g wire that is 65.0 cm long. When you gently pluck the upper end of the wire, What is the mass m of the stone
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