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The 2-kg slider fits loosely in the smooth slot of the disk, which rotates about a vertical axis through point O. The slider is free to move slightly along the slot before one of the wires becomes taut. If the disk starts from rest at time t = 0 and has a constant clockwise angular acceleration of 0.5 red/s2 plot the tensions in wires 1 and 2 and the magnitude N of the force normal to the slot as functions of time t for the interval ≤ t ≤ 5 s.
A rod of copper alloy 50 inches long has a modulus of elasticity of 16*10^7 psi. If the maximum allowable elongation is 0.05 in, determine the diameter of the rod if it has to be subjected to a load of 3200 lb.
Calculate the super-elevation required for a horizontal curve on a two-lane, two- way highway with 60 mph design speed, and a 1200 ft. radius curve. What is the required length of the spiral curve
If the evaporation rate from an open water surface is 0.27 inch/day in Tucson Arizona, what should be the surface area of the lagoon? (Note: arsenic does not evaporate but remains in the liquid water)
If 90% of the weight of this brown sugar is sucrose (C12H22O11), what mass of dissolved oxygen would have been required to degrade this mass of sucrose had some not been recovered from the barge prior to its dissolution and dispersion into the riv..
One way to treat amd is to treat the metals in a holding pond. The first order rate constant is 10/day. The concentration in the water must be below 5 ppm. How long in hours will it take to reduce the concentration from 250 ppm to 5 ppm
Ball A is thrown vertically upward from the top of a30-m-high-building with initial velocity of 5m/s. At the same instant another ball B is thrown upward from the ground with aninitial velocity of 20m/s. Determine the height from the ground andthe ti..
Find the present worth of a series of investments that starts at $1000 in year 1 and increases by 12% per year for 20 years. Assume the interest rate is 12% per year.
Explain the process for establishing a centerline for a roadway for an existing road. Include a description of the types of property markers used as well as any problems a surveyor may
A confined aquifer 30 m thick has been pumped from a fully penetrating well at a steady rate of 5000 m3/day for a long time. Drawdown at an observation well 15 m from the pumped well is 3.0 m
A certain element of soil is subject to a mean normal stress of 420 kpa and a deviator stress of 280 kpa. The major principal plane is rotated 30 degrees counterclockwise from horizontal.
What would be the resistance on a level road. What horsepower must be delivered to the wheels on the grade? If the efficiency is 80%, what must be the rated horsepower of the motor.
The self resistance of a practical inductor is (A) in series with the inductance. (B) in parallel with the inductance. (C) responsible for storing the magnetic energy. (D) No correct answer listed Capacitive reactance XC is:
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