How many moles of gas was in the bicycle tire
The air in a bicycle tire is bubbled through water andcollected at 25 degrees Celsius. If the total volume of gas collectis 5.45L at a temperature of 25 degrees Celsius and a pressure of745 torr, how many moles of gas was in the bicycle tire?
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Determine the exit temperature of the air and the rate of heat loss from the duct to the attic space. Assume fully-developed flow in the duct throughout.
Suppose that a 6.14-m/s wind is blowing across the roof of your house. The density of air is 1.29 kg/m3. Determine the reduction in pressure (below atmospheric pressure of stationary air) that accompanies this wind.
A wooden cylinder 30.0cm high floats vertically in a tub ofwater with density = 1.00g/cm3 . The top of the cylinderis 14.1 cm above the surface of the liquid. What is the density of the wood?
A random sample of 70 needles was taken from a medical manufacturing facility and 24 were found to be defective. Calculate a 99% confidence interval for the true proportion of defective needles.
A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance of 5.00 cm from its unstretched position when the system is in equilibrium. If the spring constant is 48.2 N/m, determine the mass of the o
Calculate thermal efficiency (%) of the power plant. What is the mass flow rate (lbm/hr) of steam through the power plant?
The resulting "life" data from the batteries had a mean of 22.5 hours. Assume these values have a normal distribution with a standard deviation of 1.58 hours.
(a) What is the potential energy stored in the two bands together when a 40-g stone is placed in the cup and pulled back 0.15 m from the equilibrium position? (b) With what speed does the stone leave the slingshot?
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