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Find an expression for the torsional constant k in terms of the moment of inertia I of the disk and the angular frequency w of small, free oscillations.
A 0.3 kg softball has a velocity of 15 m/s at an angle of 35° below the horizontal just before making contact with the bat. What is the initial linear momentum of the ball?
A 1 hp electric motor drives a water pump. The pump volumetric flow rate is 2*10^3 m3/s at 300 K. Determine the head loss associated with the pump if the inlet pressure is 90 kPa and the out- let pres
Assuming that fouling does not affect the flow thermal capacity of the streams, estimate the outlet temperature of the hot stream after one month of operation.
After a reaction time of 0.900s the policeman begins to pursue the speeder with an acceleration of 5.40 m/s2. Including the reaction time, how long does it take for the police car to catch up with t
A negative charge -6.00µ C is placed on the fourth corner. At the position of the negative charge, what is the magnitude of the electric field due to the three positive charges?
A rock climber of weight W has a rope attached a distance h below him for protection. Use conservation of energy to determine the maximum force exerted on the climber by the rope.
Assuming that only CaSO3 is produced, calculate the daily production rate (in tons/day) of a 55%-solids sludge from a 90%-efficient limestone FGD system on a 600-MW power plant burning 3.5%-sulfur c
Calculate the limestone feed rate, lb/hr. Assume that the flow rate exiting the scrubber is 800,000 acfm and the scrubber pressure drop is 10 in. H2O. Calculate the fan power used just by the scrubb
A 65 wt% Ni-35%Cu alloy is heated to temperature within the apha + liqquid-phase region. if the compostiong of the alpha phase is 70 wt%Ni.
If the mass flow rate of the water is 5 kg/s determine the power output of the turbine if a) the turbine is internally reversible and b) if the specific entropy production through the turbine is 0.3
Determine the final temperature and the specific work done during this process assuming a) constant specific heats, and b) variable specific heats for air.
A particle has a position vector given by r = (38t) + (46t - 4t2) , where r is in meters and t is in seconds. Find the instantaneous-velocity and instantaneous-acceleration vectors as functions of
A tank full of water that is 15 ft high and 10 feet in diameter has a hole in the bottom two inches in diameter what is the initial flow rate in gpm of the tank?
Assume that the internal energy and specific volume of water do not change from the entrance to exit. The specific volume of water is equal to 0.001 m3/kg. Calculate the horsepower required to opera
If the air exits to the atmosphere where the pressure is 85 kPa and temperature of 0°C, find a) the exit velocity, and b) the exit diameter.
What is the total work done to the system (steam)? What is the internal energy change of the system (steam)? Assume a quasi-equilibrium process.
Determine the initial state and the end state of the gas (use pressure and volume as the two properties). Do you think that the process is quasi-equilibrium?
Neglecting any other losses in the various components, calculate the total turbine power output. If the plant cycle is 100% thermal efficient, what will be the turbine power output?
How much heat is carried away from the space containing the food inside the refrigerator if the internal energy of the refrigerator (the solid structure) is unchanged during the process?
How many photons-water interactions occur in one second in one cm^3 of the water? (b) How many positrons are produced per second in one cm^3 of the water?
It is known that the normal stress is 68 MPa, and the shear stress is -100 MPa. Use Mohr's circle to solve the following. Find the max tensile stress, max compressive stress and maz shear stress in th
The system contains a sharp-edged entrace, 6 threaded 90 degree elbows, and a sharp edged exit. Determine the required pipe diameter for the given flow conditions. Assume the SG of the liquid=1.0.
Determine an appropriate value for the rod's diameter to meet these two requirements. Round up to the nearest millimeter when reporting your answer.
Graphically determine the location of a fixed pivot for a single pivoting link that permits the motion listed. Determine the degree that the link must be rotated to move from position 1 to position