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The pendulum consists of a plate having a weight 12 lb and a slender road having a weight of 4 lb. Determine the mass moment of inertia of the pendulum about point O.
If the pump is to be run at 4495 rpm with the Q and H in part (2), can you tell what type of pump you have? What impeller diameter size would you recommend for this pump?
A turbine accepts superheated steam at 800 psia and 1200 degree F and ejects it as saturated vapor with a pressure of psia. Predict the HP output at the shaft and the exit velocity if the mass flux
There are two pairs of saw horses or which untrimmed joists are placed in preparationn for cutting, and each pair can hold up to three side by side joists. Suggest a good schedule for trimming the s
Determine the maximum pressure across a 10 HP pump that has an inlet diameter of 1.0 inches and velocity of 10 fps. The pump exit port has a diameter of 1.5 inches in diameter. Assume T = 68 degree
The block is subjected to a compressive force of 2KN. determine the average normal and average shear stress developed in the wood fibers that are oriented along section a-a at 30 degrees with the ax
A vehicle is moving along a straight line with an acceleration given by m/s2 where s is in m. At s = 0, t = 0 and v = 6 m/s. Find (a) the maximum positive velocity, (b) the time it takes to reach th
If the planet is modeled as a homogeneous sphere, what is the acceleration due to gravity at its surface. The universal gravitational constant is G=6.67 x 10^-11 N-m^2/kg^2.
The motion diagram shown in the figure represents a pendulum released from rest at an angle of 45 from the vertical. The dots in the motion diagram represent the positions of the pendulum's bob at e
Calculate the specific exergy for i) water and ii) R-134a and iii) air at P = 0.6 bar and T = 10oC. Assume To = 20oC and Po = 1 bar for the dead or reference state.
A car is traveling north along a straight road at 50 km/h. An instrument in the car indicates that the wind is directed towards the west.
Heat is generated in a 2 mm diameter electric resistance wire (k = 10 W/m-K) uniformly at a rate of 5 kW/m of length of wire.
A Small experimental rocket which has a mass of 70 kg is accelerated at a rate of 6 m/s2. Determine the total force required for the following two cases (a) the rocket is moving horizontally and (b)
The thermal conductivity of the solid is 190 W/m-K and its surface temperature is maintained at 100 °C. Calculate the temperature in °C at a distance of 25 mm from the center.
There are no significant changes in kinetic or potential energy. Determine the heat transfer and work for each of the processes. What is the internal energy change for Process 1-2? What is the inter
The heat transfer, entropy generation, and exergy destruction per kmol of the mixture using ideal gas approximation (assume constant specific heats).
Assume that the expansion is adiabatic with negligible frictional effects and that the air behaves as a calorically and thermally perfect gas. What is the velocity of the air at the exit?
A truncated cone 30 cm high is constructed with aluminum. The diameter at the top is 7.5 cm and the diameter at the bottom is 12.5 cm. The lower surface is maintained at 93°C; the upper surface
Find the rate of waste heat rejection (kJ/hr) and the number of hours the unit can operate steadily on one full tank of fuel.
What are the reaction forces and reaction moments? What is the normal stress (y) and shear stresses (xy, yz) at the point Q located at (0, 0, 50 mm)?
One u.s. gallon is equivalent to 0.1337 ft^3 , 1 ft is equivalent to 0.3048 m and 1000mL are equivalent to m^3. By using the definition , determine the conversion factor between gallons and liters.
One Kg steam with a quality of 0.2 is heated in a piston/cylinder vessel at a constant pressure of 200 KPa unit the temperature reaches 400 degree C. Calculate the work done by the steam.
Determine the mass and the weight of the air contained in a room whose dimensions are 6m x 6m x 8m. Assume the density of the air is 1.16 kg/m^3.
Calculate the percent error between these two different functions for a standard deviation value obtained from n =31.
How much pressure is required for a force output of 62,275 Newtons if the effective piston area of the cylinder is 45.16 centimeters squared?