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Determine the initial speed Vo and angle theta requires. Addition info ball is 7 ft above the ground with velocity Vo at angle theta.
9.5.3 1kg of a fluid is compressed according to a law pn = 0.25, where p is in bar and n is in m3/kg. The final volume is ¼ of the initial volume.
The Steel has Sy= 400MPA. Determine the safety factor if the tank diameter is 0.5m with a 1-mm wall thickness and its length is 1 m.
Determine (a) the rate of shaft work transfer (in kW), (b) the electrical work transfer (in kJ) in 10 s, (c) the rate of heat transfer (in kW). Include the sign in all your answers.
Find the rate of change of the temperature (dT/dt) and estimate the time it will take to reach a temperature of 75 degrees C. Assume the iron, the wood as well as the air.
The specific internal energy after expansion is 230 kJ/kg. Calculate the heat rejected to the cylinder cooling water per kilogram of gases during the expansion stroke.
The gas is allowed to expand behind a piston until its internal energy is 1,400 kJ; the law of expansion is pn2=constant. Calculate the work done.
The police officer can only obtain a value for the angle theta through a visual observations having an uncertainty of +- 10degrees. Find the uncertainty of the speed measurements for theta values of
A dragster starts from rest and has an acceleration described by the graph. Determine the time t' for it to stop. Also, what is the its maximum speed?
For the air system, the work is -62 BTU. Determine the final volume. A power cycle with a thermal efficiency of 28% has Qin=600 Btu, what is Qout in Btu?
What would be the final temperature of an average natural gas at 320oF, when the pressure is dropped from 3000 to 1800 psia?
12 tons of cooling to a chilled water stream. What must the flow rate through the chiller be, in gpm, if the temperature of the supply is 46 degrees F and the return water is 60 degrees F.
Determine the change in the specific internal energy of solid aluminum as it is heated at atmospheric pressure from 300 to 500 K. Use an average specific heat over this temperature range.
Determine its mass flow rate (kg/s). If the refrigerant flow rate is cut to 5.0 kg/s but it still leaves at the same state, and the steam flow rate stays the same, what is the exit temperature of th
Determine a) the velocity of the center of the bar at this instant, b) the acceleration of the center of the bar at this instant, c) the kinetic energy of the bar at this instant
Find (a) total strain corresponding to yield strength, (b) what portion of the total strain in part 'a' is elastic and (c) what portion is plastic?
Determine the maximum allowable tensile force on the bar. If the link is allowed to elongate by no more than 0.05 in. prior to reaching the maximum allowable tensile force, determine the maximum len
A temperature difference of 300C is imposed across a low density particle board of 10 cm thickness. The thermal conductivity of the particle board is 0.078 W/(m K). Determine the heat flux through t
If a car pasess point A with a speed of 20 m/s and begins to increase its speed at a constatnt rate of a(tangential) = 0.5 m/s^2, determine the magnitude of the car's acceleration when s=100m and x
Disk has angular velocity omega = 0.1 rad/s at t = 0 and experiences constant angular acceleration alpha = 2 rad/s^2. Determine velocity and acceleration of point A in terms of i and j components at
The steam will pass through a turbine with an isentropic efficiency of 85% and exhaust to the atmosphere at 100 kPa. Determine the mass flow rate of steam (in kg/s) required to produce 300 kW of pow
Air enters the compressor of a gas power cycle at 100kPa, 300K, and a volumetric flow rate of 5 m3/s. Determine power developed by the cycle in kW.
The convective heat transfer coefficients at the inside and outside furnace walls are 56.8 W/m2 K and 5.7 W/m2 K respectively. Rate of heat transfer per unit wall area.