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What causes stall on an aircraft and why do different planes reach stall at different positions?
A large stationary Brayton cycle gas-turbine power plant delivers a power output of 100MW to an electric generator. The minimum temperature in the cycle is 300K
a hemisphere shell with mass m and radius r rests on a horizontal table. at the top of the shell there is a hole. the
A sandbag is dropped from a balloon which is ascending vertically at a constant speed of 6m/s. If the bag is released with the same upward velocity of 6m/s when t=0s and hits the ground when t=8s, neglecting air resistance,
one process follows arrhenius behavior i.e. at a given load the inverse of time to fracture has been shown to increase
A house rises to 35°C on a hot summer day. When the owner comes home they turn on the air conditioning system to cool the house down. Within 30 minutes the house is cooled to 20°C.
1. A steel bar, 20 mm in diameter and 200 mm long, with an emissivity of 0.9, is removed from a furnace at 455°C and suddenly submerged horizontally in a water bath under atmospheric pressure. Estimate the initial heat transfer rate from the bar.
a pump increases the water pressure from 70 kpa at the inlet to 700 kpa at the outlet. water enters this pump at 15
a particle moves along the positive x-axis with an acceleration ax in meters per second squared which increases
In computer security terms, explain the differences between an attack and a threat.
water is sprayed radially outward over 180 degrees. the jet is in the horizontal plane. if the jet velocity at the
Assuming that the air is 80°F and 1 atm and blows across the wall as on a flat plate, estimate the average temperature the wall will attain for equilibrium conditions.
An inventor claims to have developed a heat pump that produces a 200kW heating effect for a 20 degree Celsius heated zone while using 75 kW of power. The heat pump operates steadily in an environment at 0 degrees Celsius.
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