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The cart travels the track again and now experiences a constant tangential acceleration from point A to point C. The speeds of the cart are 13.8ft/s at point A and 16.8ft/s at point C. The cart takes 5.00s to go from point A to point C, and the cart takes 1.90s to go from point B to point C. What is the cart's speed at point B? Express your answer numerically to three significant figures in feet per second.
Calculate the overall modulus of the composite, explaining your calculations and the assumptions you have made when it is loaded:
The height (in meters) of a projectile shot vertically upward from a point 2 m above ground level with an initial velocity of 24.5 m/s is h2+24.5t-4.9t^2 after t seconds. a) When does the projectile reach its maximum height? b) What is the maximum..
the recommended threshhold limit value ( TLV-ACGIH) air concentration for occupational exposure to water-insoluble hexavalent chromium Cr (VI) is 0.01 mg/M^3. this concentration is based on an assumption that the individual is generally healthy an..
Also calculate the deflection of the beam to check that it complies with the design limit of L/200. Only variable actions are required for deflection check.
(i) volume to supply the peak demand of 1.8 times the average demand. (ii) volume to supply fire flow for at least 9 hours, and (iii) volume to supply emergency storage 600 L/day/capita. (1 L = 0.001m^3)
The maximum gage pressure is known to be 8MPa in a spherical steel pressure vessel having a 250mm diameter and a 6mm wall thickness. Knowing that the ultimate stress in the steel used is (sigma u)= 400MPa, determine the factor of safety with respe..
What is the maximum column load in kips that could be placed on a 4-ft square temporary footing on a sand for which the standard resistance is about N=15 and the water table is at the surface
A car collided with a telephone pole and left 20 ft skid marks on the dry pavement. Based on the damages sustained, an engineer estimated that the speed at collision was 15 mph. If the roadway had a +3% grade, calculate the speed of the car at the..
How fast will it be going when it hits the ground?
Given that uniform flow is subcrital and there is a weir in a rectangular channel, how do you determine what the weir height should be to force the flow to be critical. Draw this transition on a specific energy curve.
A 200 foot long, 2.5 feet in diameter, straight, corrugated metal storm drain pipe, is used to drain a parking lot. The elevation difference between the pipe ends is 8 feet. What velocity would be expected
You are to design a chlorination tank for killing microorganisms in the effluent from a wastewater treatment plant. It is necessary to remove 99% of active bacteria in a wastewater flow of 120 m 3 /hr.
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