How many kilocalories of energy does it take to melt snow
To obtain water each day , a bird in the winter eats 5.00 g of snow at 0 degree C. How many kilocalories of energy does it take to melt this snow and warm the liquid to the body temperature of the bird at 40 degree C?
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The cells used in absorbance measurements are usuallycalibrated so that the pathlength is accurately known and constant for all measurements.
Calculate the value a force must have to keep the mass moving up the plane (vertical plane) at a constant speed. Is there an angle for the plane at which no horizontal force can keep the mas moving at constant speed? if so, what is it?
Write an energy balance on the turbine and use it to determine the outlet stream temperature. Write an energy balance on the heater and use it to determine the required input (kW) to the steam.
Suppose 10 gonorrhea cases are reported over a 3-month period among 10,000 people living in an urban county. The statewide incidence of gonorrhea is 50 per 100,000 over a 3-month period. Is the number of gonorrhea cases in this county unusual for
A 2.6 kg block of wood sits on a table. A 3.0g bullet, fired horizontally at a speed of 550m/s , goes completely through the block, emerging at a speed of 250 m/s. What is the speed of the block immediately after the bullet exits?
Estimate the time required to fill the tank if the pressure in the pipe at a section 10m upstream of the exit is measured as 5 times 10degree N/m2.
Your science fiction writer friend has another harebrained idea. She wants to launch ore mined on the Moon to a processing station in orbit around the Earth. Bins with 1000 kg of ore will be launched by means of a large spring. Her spring cannon w
An electron is in a uniform magnetic field B that is directed out of the plane of the page. When the electron is moving in the plane of the page from the top of the page to the bottom, the force on the electron is directed:
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