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During a pulse, what is the light intensity on the target? The intensity of sunlight at midday is about 1100 W/m2. What is the ratio of the laser intensity on the target to the intensity of the midd
Determine the new differential reading along the inclined leg of the mercury manometer of the Figure, if the pressure in pipe A is decreased 30 kPa and the pressure in pipe B remains unchanged.
A hollow 6 ft. diameter sphere floats half-submerged in seawater. What mass of concrete is required as an external anchor to just submerge the sphere completely?
The velocity of the steam flowing from the turbine to the condenser is limited to a maximum 400 ft/sec. What is the diameter of this connecting pipe?
One leg of the manometer is open to the atmosphere (p=101.325 kPa). Determine the following: i) The deflection (cm) of the mercury column ii) The gage pressure (kPa) in the tank.
The local acceleration of gravity is 9.81 m/s^2. Determine the following: i) The initial cylinder gage pressure (kPa) ii) The linear spring constant k (N/m).
The speed is then held constant for 19.8 s, after which there is an acceleration of -3.4 m/s2 until the automobile stops. What is the total distance traveled?
It does this with air entering at 70. m/s, 50.0 C, and 3 atm and exiting at 20. m/s, 10.0 C, and 1 atm. Determine if the turbine is adiabatic, and if not, whether the heat transfer is into or out of
Determine, (a) the local atmospheric pressure, and (b) the absolute pressure at a depth 7 m in a liquid whose specific gravity is 0.93 at the same location.
The outer diameter of this tube is 60 mm. Determine a) the maximum normal stress in the rod, b) the minimum wall thickness for a load of 10 kN.
If the plane starts to level off at t = 40 s, determine at this instant (a) the horizontal distance it is from the airport, (b) its altitude, and (c) its speed.
Which of the following butt-weld preparations is usually the most susceptible to lack of sidewall fusion during the manual metal arc process?
The coefficient of friction of the metal against the dies wall is 0.1. Determine if this forging operation can be accomplished using a forging hammer with a capacity of 1,000 kN.
What is the airflow speed in the stream tube at a location near the wing where the cross-sectional area of the stream tube is 0.05 ft^2. What is the static pressure at this location?
How much does it save in gasoline if compared to a 30% efficient regular car engine with the same power output running the same hours and miles a years?
Determine the ration of the minimum size of the fuel oxidizer storage tanks, assuming they are stored as gasses at the same pressure and the anode stoichiometry is 1.2, whereas the cathode stoichiom
When the liquid in the boiler and turbine are perfectly insulated so no energy (heat transfer) "escapes" through the walls. What is the quality of the fluid in the tank at the end of the process?
Determine the power needed to drive the low speed turbine, given maximum velocity in the test section 140 mi/h with 12 x 12 in. Assume sea-level standard air properties.
Find (a) the conditions and amount of air supplied to the space, (b) the temperature rise of the air through the furnace, (c) the amount of water vapor required.
Assuming ideal gas behavior for the air and neglecting kinetic and potential energy effects, determine the: a) Mass of the air b) Final temperature in oR c) Final pressure in psi.
Calculate the maximum power of the wind on each site, in kW. Determine which site is better for wind power generation.
Determine the: a) amount of paddle-wheel work in BTU after 45 minutes b) final temperature c) final pressure of the helium gas Ans. P2 = 47.92 psi.
Determine the work in BTU b) Determine the heat transfer in BTU using: • Temperatures and constant specific heat evaluated at 530
The barometer reads 29.73 inches Hg, and the stagnation temperature of the air stream is 80o. Compute the air velocity 1. assuming the air incompressible 2. assuming the air compressible.