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A 30" beam with a cross section of 1" wide and 2" tall is supported by a pin at point A on its left end, and a roller at point B on its right end. A 300 lb force is exerted 10" to the right of A (20" left from B), and a 600lb force is exerted 20" to the right of A (10" left of B).
Using singularity functions for beam deflection, calculate the maximum deflection of the beam and its correspoinding horizontal distance from A.
the motion of a particle is defined by the relation x= 1.5t^4-30x^2+5t+10. where x and t are expressed in meters and seconds, respectively. Determine the position, the velocity and the acceleration of the particle when t=4s
Determine the percent error n in replacing the sine and the tangent of an angle by the value of the angle in radians for angle values 5 degrees, 10 degrees, and 20 degrees. Explain the qualitative difference between the sine and tangent results
A glass jar is heated in an oven and sealed when the air pressure is 103 kPa and the temperature is 105 C. Find the absolute, gage, and vacuum pressures in the jar when it cools to 20 C.
If a temperature inversion forms over the city at a height of 0.70 km, how long will it take the carbon monoxide concentration to reach 50 ppm if the wind velocity is zero If the wind velocity is 1 m/s,
The air pressure is taken to be 80kPa and the mean annual temperature is 2 degrees Celsius. What are the specific mechanical energy and power available in thw wind that a wind turbine with 60m diameter blades might be able to harvest
The rigid bar of negligible weight is supported as shown. Find the stress in each rod if the temperature rises DeltaT after a load P is applied. Use the following data: area of steal rod 320mm2, bronze rod 1300mm2, thermal expansion coefficient Al..
The measurements of the nominal shear strength (in kN) for a sample of 15 prestressed concrete beams are as follows: 580 400 428 825 850 875 920 550 575 750 636 360 590 735 950
A tensiometer is used to measure a compacted soil in the field that has a matric suction of 200 kPa under atmospheric conditions. The pore-water pressure measurement in the tensiometer reaches -99 kPa
Suppose 2.3 g/day of vinyl chloride, with a half-life of 1 day, leaks into a 20,000 m3 pond. Suppose an adult obtains his drinking water from the pond and consumes the water daily for 7 years
A body slides down a frictionless plane and during the third second after starting from rest if it travels 20.4m. What is the angle of inclination of the plane?
An emission control system for a new car costs $800 and reduces NO_x emissions from 0.4 g/mile to 0.23 g/mile. Assume the car is driven 10000 miles per year, and the life of the emissions control system is 11 years with zero scrap value.
The average rate of flow measured in a gage at the outlet of the watershed was 30 m^3/sec. Estimate the water losses due to the combined effects of evaporation, transpiration, and infiltration due to ground water.
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