Fluid mechanics and thermal physics practice problems

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Reference no: EM132614399

Fluid Mechanics and Thermal Physics Practice Problems

Question 1. If you tried to smuggle gold bricks by filling your backpack whose dimensions are 60 cm x 28 cm x 18 cm, what would its mass be? The density of gold is 19.35 g/cm³.

Question 2. Calculate the total force of atmosphere acting on the top of a table that measures 1.6 m x 2.9 m.

Question 3. The maximum gauge pressure in a hydraulic lift is 17.0 atm. What is the largest size vehicle (in kg) that in can lift if the diameter of the output line is 0.28 m?

Question 4. A geologist finds that a Moon rock whose mass is 9.28 kg has an apparent mass of 6.18 kg when submerged in water. What is the density of the rock?

Question 5. What is the specific heat of a metal substance if 135 kJ of heat is needed to raise 5.1 kg of the metal from 18.00C to 31.5⁰C?

Question 6. How much heat is needed to melt 16.50 kg of silver that is initially at 20⁰C? The specific heat capacity of silver is 235 J/kg⁰C. The latent heat of fusion and vaporization of silver is 8.82 x 10⁴ J/kg and 2.33 x 10⁶ J/kg, respectively.

Question 7. A concrete railroad tie has a length 2.45 meters on a hot, sunny, 35°C day. What is the length of the railroad tie in the winter when the temperature dips to -25°C? The coefficient of linear expansion is 12 x 10^-5/0C.

Reference no: EM132614399

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