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TCE from a spill accumulates in a depression of a parking lot. Estimate how fast the solvent volatilizes (in g of TCE per cm^2 per unit time) when these conditions exist:
a. The wind speed is 2 m/sec and temperature is 20 degrees Celcius.
b. Use the same conditions as (a), except a rainstorm covers the TCE with 1 cm of water. Assume TCE dissolves into water and quickly reaches equilibrium with the water.
Would a 30 slot stainless steel screen (2.0 m long; located at the bottom of the well) have sufficient collapse strength for this application?
Testing has shown that at a local race track (0.25 in length) racecars have a maximum side friction factor of 0.08. The smallest turn radius on the oval track is 150 feet and has a banking of 20 degrees.
Draw the shear and moment Diagram for a beam that is 10 feet long, supported on the left end by a roler, and the right end by a pin, and has a 1000 lb load placed in the center i.e at 5 feet.
A pump, which has an efficiency of 75%, adds 15 m of head to the flow of 20 L/s of water through a 100 mm diameter pipe. determine The energy that must be delivered by the motor to the pump
A particularly long traffic light at an intersection is green 20% of the time. A car approaches this intersection once each day. Let X represent the number of days the car encounters a green light.
The undeformed length of the spring is l. Knowing that the collar is released from rest at x = and neglecting friction between the collar and the horizontal rod, determine the magnitude of the velocity of the collar as it passes through point C.
the boiling point of water decreases wiht elevation because of the pressure change. what is the boiling point of water at an elevation of 2000m and at an elevation 4000 m for standard atmospheric conditions
Q. What is the main objective of NASA's Mars Science Laboratory (MSL) mission? When was it launched and when and where is it scheduled to land on Mars? Explain the major differences between this mission and Mars Exploration Rovers (MER) mission?
disk of radius R=7 in. spins at a constant angular speed of w=500rpm in the clockwise direction. If the disk is released from rest far above the ground, what are the speed and acceleration of the disk's top C point after it has fallen h=3ft
The maximum vertical load and horizontal load have been identified and shown in the figure. Under this loading condition, you are asked to determine the horizontal deflection of joint C.
Consider a wide flange steel beam of size W10x60 subjected to a negative bending moment of 24 kip ft. Calculate the maximum compressive and maximum tensile stresses and indicate where the stress will be tensile and where compressive.
The frame is supported in part by normal and friction forces between the wall and the plate at A. Determine the friction force exerted on the plate at A. Also determine the minimum required coefficient of friction at A for the frame to remain in e..
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