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As a result of a chemical spill, benzene is evaporating at the rate of 1 gram per minute into a room that is 6m x 6m x 3 m in size and has a ventilation rate of 10m^3/min. a)compute the steady-state concentration of benzene in the room b)Assuming the air in the room is initially free of benzene, compute the time necessary for benzene to reach 95 percent of the steady-state concentration.
a. motorcycle is used to stunt show to go over a valley .if the initial speed at a is u ms then evaluate a ?the minimum
Determine the ideal launch vehicle that can put this orbiter into the parking orbit. (hint: you do not have to consider the Sun in this problem. Only SOI of the Earth and the Moon)
the two sides of a v-shaped water trough are hinged to each other at the bottom where they meet as shown in figure q1
Refrigerant 134a at 700 kPa and 40oC is expanded adiabatically in a closed system to 60 kPa. Determine the work produced, in kJ/kg, and final enthalpy for an isentropic expansion efficiency of 80.
The linear joint (Type L) of a certain industrial robot is actuated by a piston mechanism. The length of the joint wehn fully retracted is 600 mm and when fully extended is 1000 mm. If the robot's controller has an eight-bit storage capacity, dete..
A plane can fly 299 mph in still air. If it can fly 180 miles downwind in the same amount of time it can fly 119 miles upwind, find the velocity of the wind.
a horizontal 500 lb force performs at a point d of crankshaft ab which is held in static equilibrium by a twisting
based solely on available static pressure at a fire hydrant of 51.67 psi that has an elevation of 657 feet above see
Find the stress in both members shown below and what steel specifications (types of steel) are suitable for structural applications?
A ball with a mass of 0.25 kg is thrown vertically upward with an initial velocity of 10 m/s. What is the velocity of the ball when it reaches the highest point?
vector r is the difference between vectors t and s. if s is inclined 28 degrees from the vertical and the angle between
A small hydroelectric power plant produces electrical power at a rate of 30 kW. The plant utilizes a stream of water that drops 40 m from a lake to the turbine and flows at a rate of 100 kg/s. What is the efficiency of the turbine-generator?
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