The density of ice is about 900 kg/m3, and the density of water is about 1000 kg

Question

The density of ice is about 900 kg/m3, and the density of water is about 1000 kg/m3. A cubic block of ice one meter on a side floats in water. Assuming that the lowest square face of the cube is horizontal, the height of the block above the water line is: What is Bernoulli's Principle? Provide examples and applications: The temperature of a beaker of water is 318.2 K. What are the Degree C and Degree F temperatures? A long steel beam has a length of twenty-five meters on a cold day when the temperature is 0 degree C. What is the length of the beam on a hot day when T = 40 degree C? (alpha_steel = 1.1 times 10^-5/C degree) If the output piston in a hydraulic pump exerts a greater force than one applied to the input piston, is the pressure at the output piston also larger than at the input piston? Explain An ice cube is placed in a glass of water. What happens to the level of water as the ice melts? What is zeroth law of thermodynamics?

Explanation / Answer

9.

T = 318.2 K

T in Celsius = 318.2 - 273.15 = 45.05 C

T(F) = T(C)*(9/5) + 32

T(F) = 45.05*(9/5) + 32

T in Degree F = 113.09 F

10.

dL = L0*alpha*dT

dT = 40 - 0 = 40 C

L0 = 25 m

alpha = 1.1*10^-5 /C

dL = L - L0

So,

L = L0 + alpha*L0*dT

L = 25*(1 + 1.1*10^-5*40) = 25.011 m

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