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A car starts from rest and moves along a straight path as described by the following piecewise function.
What is the displacement and acceleration of the automobile at t-15, 45, and 50 seconds. Construct a v--t graph from 0 to 50 seconds.
v(t)=5 ft/s, t?15 sec
v(t)=5 ft/s, 15<t?45 sec
v(t)=5 ft/s, 45<t?50 sec
On her 23 birthday, and engineer decides to start saving toward building ip a retirement fund that pays 8% interest compounded quarterly (market interest rate) She feels that 600,000 worth of purchasing power in today's dollars will be adequate
After initial mixing, the DO concentration in the river is 9.5mg/L and the temperature is 15ºC. If the ultimate BOD of the mixed river water is 30mg/L,
What is the terminal settling velocity of a particle with a specific gravity of 1.4 and a diameter of 0.01 mm in 20 degrees celcius water. What is the smallest diameter particle of specific gravity 1.4
An 1100 ft. straight line route survey, which had PI’s at3+81.27 (I = 12o30’) and 5+42.30 (I = 10o56’), laterhad 600 ft radius simple curves inserted at each PI. Computethe following:
Consider an electric field that is uniform in direction throughout a certain volume. can it be uniform in magnitude?
The density of 70.5 wt% aqueous perchloric acid is 1.67 g/mL. a. How many grams of solution are in 1.000 L? b. How many grams of HClO4 are in 1.000 L? c. How many moles of HClO4 are in 1.000 L?
Calculate the work done and the heat transfer. Hint: Use the ideal gas law pv = RT to nd the temperature at the end of compression. Take R = 0.287 kJ/kg.K and cv = 0.718 kJ/kg.K.
A 1-inch elevator cable is 1000 feet long. The modulus of elasticity for the cable is 25,000,000 psi. Determine the total elongation of the cable due to a load of 20,000 pounds.
A Horizontal curve on a single-lane highway has its PC at station 123+70 and its PI at station 130+90. The curve has a super-elevation of 0.06 ft/ft and is designed for 70 mph. What is the station of the PT
Each week 85 trucks bring a total of 2,180 metric tons of municipal solid waste (MSW) to the landfill. Each truck averages two loads per day. Each truck has a capacity of 4.5 metric tons and they operate 5 days/week.
Determine the magnitudes of the additional loads that must be applied at B and F if the resultant of all six loads is to pass through the center of the mat.
A pipeline 1200ft long and 8in. in diameter hasat its inlet point 75ft of available hydraulic energy with respectto the reference level. The velocity in the pipe is 5fps; thepressure at its end is 12psi.
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