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A snow maker at a resort pumps 150 kg of lake water per minute and sprays it into the air above a ski run. The water droplets freeze in the air and fall to the ground, forming a layer of snow. If all of the water pumped into the air turns to snow and the snow cools to the ambient air temperature of -5.0°C, how much heat does the snow-making process release each minute? Suppose the temperature of the lake water is 16.8°C, and utilize 2.00x103J/(kg·C°) for the specific heat capacity of snow.
question1assume you have a furnace wall that is constructed of two types of brick. the temperatures of inner and outer
Auto companies frequently test the safety of automobiles byputting them through crash tests to observe rge integrity of thepassenger compartment. with what average force is it brought to rest
An ocean liner leaves New York City and travels 34.0° north of east for 169 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the subsequent directions.
A Carnot engine operates between 27C and 927C and preforms 4800 J of work. Calculate the net entropy change during one cycle
A hunter aims directly at a target (on the same level) 140 m away.
A 90 capacitor that had been charged to 30 is discharged through a resistor. The figure (Figure 1) shows the capacitor voltage as a function of time. What is the value of the resistance
the normal force on the soles of your feet as you stand barefooted on a horizontal wood floor. it acts on your feet. it
one mole of oxygen gas is at a pressure of 6.70 atm and a temperature of 24.0degc.a if the gas is heated at constant
A 1000-kg car is moving at 30.0 m/s around a horizontal curve whose radius is 100 m. What is the magnitude of the frictional force required to keep the car from sliding
A satellite moves around the Earth in a circular orbit of radius r. (utilize G for the universal gravitation constant, M for the mass of the Earth, and r, as appropriate, when answering parts (a), (b), and (c) below.)
An object-spring system moving with simple harmonic motion has an amplitude A, What is the total energy of the system in terms of k and A only
A 75g lead sinker at 90 degrees celsius is placed in 500 cm^3 of water at 20 degrees celsius. What is the final temperature of the sinker
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