What is the minimum power that must be supplied to the fan
A fan is used to accelerate quiescent air to a velocity to 12m/s at a rate of 3m3/min. If the density of air is 1.15kg/m3. what is the minimum power that must be supplied to the fan?
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The cannon points in the direction that the train is moving. What is the horizontal range observed by a person standing on the ground?
A closed system contains 2kg of air undergoes an isothermal process from 600kPa and 100 degree C to 80kPa. Determine the internal energy change, the work done and the heat transfer during this process.
Consider a person standing in a room at 18[C]. Determine the total rate of heat transfer from the person if the exposed surface area and skin temperature of the person are 1.7[m^2] and 32[C], and the convection heat transfer coefficient is 5[W/m^2
A 1 kg projectile is shot straight up from the earth's surface with a velocity of 100 m/s and reaches a height of 300 m before it reverses course and starts downward. How much work did the surroundings do on the projectile during its upward travel
Determine the final equilibrium temperature of the blocks. Block A is aluminum (Cp = 0.900 kJ/kgK) with a mass of 05.kg and block B is copper (Cp = 0.386kJ/kgK) with mass of 1.0kg
A bullet weighing 50 grams and traveling at 200 m/s is shot into a stationary block of wood weighing 4 kg where it lodges. Determine how much each of the following changes from before the bullet strike to after the bullet stops for the system defi
When delivering 10. amps to an external load, the voltage drops to 11.2 volts. What is the value of the constant voltage source (Vs) and the internal resistance (Rs)?
A 2000 lbm automobile is driving down a level road at 70 mph. The engine is disengaged and the automobile is allowed to coast. After 7 seconds, the speed of the automobile is 60 mph. Use this information to estimate the power required for this aut
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