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A nylon thread is subjected to a 10-N tension. Knowing that E = 3.2 Gpa, that the maximum allowable normal stress is 40 MPa, and that the length of the thread must not increase by more than 1%, det
We want to produce a 0.040" thick sheet of this copper material by cold rolling. What should be the starting thickness of the metal?
At 25 degres C, an aqueouse solution containing 35.0 wt% H2SO4 has a specific gravity of 1.2563. A quantity of the 35% solution is needed that contains 195.5kg of H2SO4
If the water flows at a rate of 5400 l/min, determine the pressure at the lower end. Assume the energy loss due to friction inside the pipe is negligible.
A particle travels along the path y^2 = 4x with a constant speed of v= 4m/s. Determine the x and y components of the particle's velocity and accceleration when the particle is at x = 4m.
The velocity of a particle is given by v={16t^2i + 4t^3j + (5t +2)k} m/s, where t is in seconds. If the particle is at the origin when t=0, determine the magnitude of the particle's acceleration wh
A rigid tank of cold fluid sits in a room at (300 K = T..). The fluid is initially at (180 K = T.). THe luis temperature is observed to vary with time as: Tfluid(t) = T..-(T..-T.)exp[-t/time constan
Assume that the change in kinetic energy is negligible. Determine the magnitude and direction of heat transfer rate during the process.
A particle moves along a straight line with an acceleration of a = 5/(3s^1/3 + s^5/2)m/s^2, where s is in meters. Determine the particle's velocity when s=2m, if it starts from rest when s=1m. Use
Calculate the density, in gram/cm3, of a perfect aluminum crystal assuming that that there are no vacancies. Give an answer with at least four significant figures.
Tests reveal that a normal driver takes about 0.75s before he or she can react to a situation to avoid a collision. It takes about 3s for a driver having 0.1% alcohol in his system to do same.
Car A starts from rest at t=0 and travels along a straight road with a constant acceleration of 6ft/s2 until it reachers a speed of 80 ft/s2 . Afterwards it maintains this speed.
R-134a is flowed into an insulated 0.2m3 initially container from a line at 500kPa, saturated vapor until the flow stops by itself. Find the total irreversibility in the process.
A blower develops 750mm of water gauge at a speed of 1480rpm and a flow rate of 38cubicmeter per sec. Determine the specific speed of air blower?
Motion of the threaded collars and is controlled by the rotation of their respective lead screws. If has a velocity to the right of and has a velocity to the left of when, determine the angular velo
A force is described as 150 lb, acting through the origin of a two dimensional coordinate system, up at an angle 135º counterclockwise with the positive x axis. Sketch the force. Write the for
The acceleration of a particle as it moves along a straight line is given by a=(2t-1)m/s^2, where t is in seconds. If s= 1m and v= 2m/s when t=0, determine the particle's velocity and position when
What would be the equivalent work input required to achieve this same effect. How far would a 1 kg weight have to fall to achieve this?
A supersonic aircraft consumes 5320 imperial gallons of kerosene per hour of flight and flies an average of 14 hours per day. It takes roughly seven tons of crude oil to produce one ton of kerosene.
A waste treatment pond is 50 m long and 15 m wide, and has an average depth of 2 m. The density of the waste is 85.3 lb m/ft cube. Calculate the weight of the pond contents in lbf, using a single d
If 10m^3 of hydrogen at 0.4 MPa and room temperature is adiabatically mixed with 20m^3 of nitrogen at 0.1 MPa and room temperature, determine the molecular weight, R, and the final pressure of the m
A machine of mass 125kg supported by springs of total stiffness k=750kn/m. the rotating parts have a mass of 2.5kg which is displaced 2.2mm from the centre of rotation. the damping system c=3346ns/m
A No. 120 roller chain operates on a small sprocket of 12 teeth. Calculate and plot the curves for horsepower vs. speed from 0 to1400 rpm at 100 rpm increments.
What is the probability that at most eight of ten independently selected specimens have a hardness of less than 75.84?
An 800 ft ship has a displacement of 35,000 tons, and the area defined by the waterline is 38,000 ft2. Will the ship take more or less draft when steaming from salt water to fresh water? How much w