Questions and Answers of Fundamentals Thermal Fluid

Complete this table for H2O: Phase description P, kPa v, m/kg 7.72 T, °C 50 400 500 350 Saturated vapor 250 110
A construction crane lifts a prestressed concrete beam weighing 3 short tons from the ground to the top of piers that are 36 ft above the ground. Determine the amount of work done considering(a) The
A river flowing steadily at a rate of 175 m3/s is considered for hydroelectric power generation. It is determined that a dam can be built to collect water and release it from an elevation difference
Is the weight of a system an extensive or intensive property?
You are trying to understand how a reciprocating air compressor (a piston–cylinder device) works. What system would you use? What type of system is this?
A 4‑kW resistance heater in a water heater runs for 3 hours to raise the water temperature to the desired level. Determine the amount of electric energy used in both kWh and kJ.
Solve Prob. 1–16 using an appropriate software. Print out the entire solution, including the numerical results with proper units.In ProblemA 3‑kg rock is thrown upward with a force of 200 N at a
A 3‑kg rock is thrown upward with a force of 200 N at a location where the local gravitational acceleration is 9.79 m/s2. Determine the acceleration of the rock, in m/s2.
The constant‑pressure specific heat of air at 25°C is 1.005 kJ/kg·°C. Express this value in kJ/kg·K, J/g·°C, kcal/ kg·°C, and Btu/lbm·°F.
What is the weight, in N, of an object with a mass of 200 kg at a location where g = 9.6 m/s2?
At 45° latitude, the gravitational acceleration as a function of elevation z above sea level is given by g = a - bz, where a = 9.807 m/s2 and b = 3.32 × 10-6 s-2. Determine the height above sea
Explain why the light‑year has the dimension of length.
What is the difference between kg‑mass and kg‑force?
Define stress, normal stress, shear stress, and pressure.
Can there be any heat transfer between two bodies that are at the same temperature but at different pressures?
Why is heat transfer a nonequilibrium phenomenon?
What is the driving force for(a) Heat transfer,(b) Electric current,(c) Fluid flow?
How does the science of heat transfer differ from the science of thermo dynamics?
One of the most amusing things a person can experience is that in certain parts of the world a still car on neutral going uphill when its brakes are released. Such occurrences are even broadcast on
Some rocks or bricks contain small air pockets in them and have a spongy structure. Assuming the air spaces form columns of an average diameter of 0.006 mm, determine how high water can rise in such
Even though steel is about 7 to 8 times denser than water, a steel paper clip or razor blade can be made to float on water! Explain and discuss. Predict what would happen if you mix some soap with

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