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Problem: A horizontal force of 80N acts on a mass of 6 kg resting on a horizontal surface. The mass is initially at rest and covers a distance of 5 m in 0.92 s under the action of the force. Assuming there are no energy losses due to air resistance and therefore that the acceleration is constant:
a. Calculate the total energy expended in the acceleration.
b. Plot a graph of the kinetic energy of the mass against time.
c. Plot a graph of the kinetic energy of the mass against distance.
d. Calculate the coefficient of friction between the mass and the surface.
A beam that is part of a rigid frame has end moments and mid-span moments for dead, live, and earthquake loads. Determine the governing load combination for both negative and positive moments at the ends and mid-span of the beam.
The frame is designed to carry the hanging mass at G equal to 167 kg. The frame is supported by a pin connection at C and the rope AB, and constructed with pin connections at points E, F, and D. Importantly, members BEFG and EDC are continuous mem..
A chemical mixing basin is to be designed to blend chlorine and treated wastewater. The basin flow is 700 gallons per minute and the basin dimensions are 5 feet by 5 feet by 5 feet water depth.
Now consider the same beam with the same length but it is now a simply supported beam. An additional point load, P, is then applied at midspan. What value of P (in conjunction with self weight) will induce cracking? Draw the stress and strain distrib..
A water treatment plant effluent is to be disinfected with chlorine from ton cylinders of compressed gas. The plant is 5 million gallons per day. There are a total of 10 useable cylinders in the plant.
What ethical problems might these conflicts create? How are these two different ethical codes tied to public perceptions of the role of law enforcement?
If the engine is mounted solidly on a rigid foundation, what is the alternating force amplitude transmitted? Assume the connection rod to be of infinite length.
Design a column base plate for a W10 x 33 column supporting a service dead load of 20 kips and a service live load of 50 kips. The column is supported by a 12-inch x 12-inch concrete pier. Use A36 steel and f 'c = 3 ksi. Answer 12 x 12 x 5/8
Saturated liquid water is in an adiabatic compressor with inlet and outlet pressures of 100 kPa and 1 Mpa. The isentropic efficiency is 85%. Find the work input (kj/kg) and entropy generation (kj/ kg K).Do the same for saturated vapor steam in an adi..
What additional data and information should he gather,and how should he go about gathering the data information ?
the vertical portion of the press shown below consists of rectangle tube of wall thickness t=8mm. knowing that the press has been tightened on wooden planks being glues together until P = 20 kN,
Consider high pressure steam at 400 degrees C and v =0.01567 m^3/kg. Obtain estimates of the pressure using
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