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Fuel systems of modern cars are designed so thermal expansion of gasoline doesn't result in wasteful and polluting fuel spills. As an engineer, you're asked to specify the size of an expansion tank that will handle this overflow. You know that gasoline comes from its underground tank at 10 degrees celcius, and your tank must handle the expansion of a full 62 L gas tank when the gas reaches a hot summer day's temperature of 31 degrees celcius. How large an expansion tank do you specify?
A Carnot engine has a power output of 130 kW. The engine operates between two reservoirs at 20°C and 500°C, How much energy does it take in per hour
Shoveling snow can be extremely taxing since the arms have such a low efficiency in this activity. What is her useful power output
The eyepiece of a compound microscope has a focal length of 3.10 cm, and the objective lens has f = 0.730 cm. Calculate the total magnification
The critical density of the universe is 5.80×10^?27 kg/m^3. Assuming that the universe is all hydrogen, express the critical density in the number of H atoms per cubic meter.
A 40.0 kg girl and a 8.4 kg sled are on on ice (frection coefficient 0.01) of a frozen lake, draw free body diagrama for the girl and the sled
A Fabri-Perot interferometer is to be used to resolve the mode structure of a He-Ne laser operating at 632.8 nm. What is the coefficient of finesse of the instrument
light is incident of the surface of metallic sodium whose work function is 2.3 ev. the maximum speed of the
A 30.0- goldfinch lands on a slender branch, where it oscillates up and down with simple harmonic motion of amplitude 3.50×10?2 and period 1.50. What is the maximum speed of the goldfinch
Calculate the shear stress of the crude oil at the walls, and plotting the velocity distribution graph for the same.
A meteoroid is speeding throughout the atmosphere, travelling east at 16.80 km/s while descending at 13.60 km/s. What is its speed in km/s.
Two blocks with masses M1=7.90kg and M2=1.20kg are attached by a thin string which goes over a frictionless, Calculate the magnitude of the frictional force acting on M1
A physics demo launches a ball horizontally while dropping a second ball vertically at exactly the same time. Which ball hits the ground first? and why
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