Can anyone give me a step by step solution to the followingquestions? Thanks in

Question

Can anyone give me a step by step solution to the followingquestions? Thanks in advance :)
1. The atmospheric pressure above a swimming pool changes from 755to 765 mm of mercury. The bottom of the pool is a rectangle (12 m x24 m). By how much does the force on the bottom of the pool (innewtons) increase? (You may consider the conversion factor: 133 Pa= 1.0 mm Hg)
2. A Kennedy half-dollar has a mass that is 1.150 x 10-2 kg.The coin is a mixture of silver and copper, and in water weighs0.1011 N. Determine the mass of silver in the coin.(water=1000 kg/m3, copper=8890 kg/m3, silver=10500 kg/m3). Can anyone give me a step by step solution to the followingquestions? Thanks in advance :)

2. A Kennedy half-dollar has a mass that is 1.150 x 10-2 kg.The coin is a mixture of silver and copper, and in water weighs0.1011 N. Determine the mass of silver in the coin.(water=1000 kg/m3, copper=8890 kg/m3, silver=10500 kg/m3).

Explanation / Answer

(1) P = 765 - 755 = 10 mm Hg; you need to convert this toPascals. 10 x 133 = 1330 Pa W = 12 m L = 24 m P = F/A F = A P F = AP = W L P

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