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An automobile traveling at 30 miles per hour on level pavement with a coefficient of kinetic friction of 0.6. Weighs 3,000 lb. Sixty percent of its weight is on the front axle and 40% on the rear axle.
Calculate the braking distance if all brakes are working.
Calculate the braking distance if only the front brakes work.
Calculate the braking distance if only the rear brakes work.
A sample of soil was compacted into a 945 ml.laboratory mold. The mass of the compacted soil was 1850 grams and its moisture content was 13.1%. Specific gravity of solids is 2.70, Compute the moist unit weight, dry unit weight, and degree of satu..
During an experiment, the depth of a water flow in a flume is measured five times by using a ruler with 1/16-in division. The results from these measurements are 4.88 in, 5.06 in, 5.03 in, 5.13 in, 4.94 in. What is the instrumental error and what ..
For a concrete column that is part of a braced frame, if the column is square, tied, 18 inches per side, 16 feet long, classify the column as slender or non slender
A glass tube with inside diameter of 2-mm is inserted vertically into a dish of mercury at 20°C. Determine the difference in mercury levels inside and outside the tube.
The volume flow rate of streams into the pipe is given by QA = 0.02t m 3 /s and that of stream B by QB = 0.008t 2 m 3 /s, where t is in seconds. The exit area of the pipe is 0.01m 2 . Find velocity and acceleration of the flow at exit at t = 1s.
Saturated refrigerant-134a vapor at 20 psia is compressed reversibly in an adiabatic compressor to 120 psia. Determine the work input to the compressor. What would your answer be if the refrigerant were first condensed at constant pressure before it ..
If the service life is just five years, instead of six years, what is the minimum required annual savings in lavore for the firm to realize a 10% return on investment?
The disk has an initial clockwise rotation speed of 8 rad/sec and at t=0 begins a counter-clockwise acceleration of ? = 0.6 t1.88. What is the speed of point A at t=3 sec? Point A has a radius of 2 ft.
A 14-in. square concrete post is 6ft tall and reinforced by nine 3/4" diameter steel rods. Assume that the materials are high-strength concrete and ASTM-A36 structural steel.
If concrete compression test fails, should Schmidt hammer test be adopted as an alternative test to prove the concrete strength?
The depth of water, H, behind a gravity dam is normally distributed with a mean of 100' and variance of 2,500 ft2. The total hydrostatic pressure against the dam is F=?H2/2, where ? is the unit weight of water (62.4 pcf).
A 200 pound man stands at the end of a 16 foot diving board (point C) with a pin at (A) and a roller located 6.695 ft away from A at point (B). The hollow diving board is made of aluminum
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