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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.
At the reference temperature, three identical rods of length L form a pin jointed truss in the shape of an equilateral triangle, ABC. Determine the angle theta as a function of delta T, the temperat
Ammonium (NH4+) is a weak acid with a pKa of 9.26. The dissociation is: NH+4 <--> NH3 + H+. Calculate the mass of ammonium added to 1 L of water in order to obtain a pH of 4 at equilibrium.
Design an N-input mux from N/2 input Mux. Use this to describe a design that takes log N gate delays and O(N) transisitors.
Generate plots for each of the following functions over the time span from -4 s to +4 s.
Name an application in industry that uses inductors and/or capacitors in its operation.
The solid silver chloride is placed in water. It reaches equilibrium and has a solubility product constant of 1.8 x 10-10. What is the concentration of silver if the chloride concentration is raised
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.
Temperature is 20°C. A constriction in the pipeline causes velocity to increase to 13 m/s within the constriction. Assuming that Bernoulli's equation applies (i.e. p + ½ ? v2 = constant),
Calculate the pressure inside a 2-mm diameter bubble of water at 20°C and compare with the pressure inside a 2-mm diameter droplet of water at 20°C.
The air density is 0.00206 slugs/cuft. The car has frontal area of 19.8 sqft, a drag coefficient of 0.28, a wheel radius of 12.6 inches, a drive axle slippage of 3%, and a drivetrain efficiency of 8
A Ferris wheel with a radius of 35 feet starts from rest and undergoes an angular acceleration of 0.05 rad/s^2. Compute the magnitude of the velocity and acceleration vectors at 5 seconds for a poin
Moist air at standard conditions is at a dry bulb temperature of 80 degree F and a relative humidity of 50%. It is cooled to 50 degree F. Use the psychromtric chart to determine: a- The energy remov
at s=0 the driver applies the brakes hard enough to cause the car to skid. Assume that the car keeps sliding until it stops, and assume that throughout this process acceleration is a= -7.4556. compu
calculate the amplitude F0 of the sinusoidal excitation force that is necessary to produce a steady-state vibration with a velocity amplitude of 10 m/s at resonance. what is the corresponding amplit
A rigid open cylinder having an inside diameter of 15 mm contains a column of water 500 mm long at 20 degrees C. If a compressive force of 2 kN is applied to the top of the water column by a frictio
A high strength steel is developed with a yield stress of 1460 MPa and a critical stress intensity factor of 30MPa(m)^0.5. Calculate the size of the initial flaw that will cause failure in an infini
a vertical curve on this highway connects +1% and +3% grade and is 420ft long. if a horizontal curve on highway is on a two-lane section with 12 ft lanes and has a central angle of 37 degrees and a
a freeway exit ramp has a single lane and consists entirely of a horizontal curve with a central angle of 90 degrees and a length of 628 ft. if the distance cleared from the centerline for sight dis
An existing high-way railway at-grade crossing is being redesigned as a grade seperated to improve traffic operations. the railway must remain at the same elevation. the highway is being reconstruct
at one point on the highway, a 720 ft equal-tangent crest vertical curve exists. measurements show that at 3+40 stations from the PVC, the vertical curve offset is 3.5 ft. assess the adequacy of thi
How are compacted and loose bulk density used in real life. Also is a high degree of accuracy necessary in the bulk density tests
An air-filled rubber ball has a diameter of 6 in. If the air pressure within it is increased until the ball's diameter becomes 7 in., determine the average normal strain in rubber.
Assume the actual water temperature for calibrating a 1/3 ft3 measure was 65 degrees F. If you had used a water temperature of 75 degrees F for your calibration, how much error would there be in you
A steel bolt and nut are tightened around an aluminum sleeve. Find the internal forces as the nut is rotated 1 turn