QQuestionPhysics
QuestionPhysics
What is the pressure reading of 35 psi in kPa (absolute)?
The pressure of water in a container is 30 kPa. What is the absolute pressure in meters of water?
An iron block weighs 5 N and has a volume of 200 cubic centimeters. What is the density of the block?
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Answer
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Step 1I'll solve these problems step by step, following the precise LaTeX and formatting guidelines:
Problem 1: Convert 35 psi to kPa (absolute)
Step 2: Recall the conversion factor from psi to kPa
1 \text{ psi} = 6.895 \text{ kPa}
Final Answer
Problem 2: Convert 30 kPa to meters of water Step 1: Recall the conversion factor from kPa to meters of water 1 \text{ kPa} = 0.102 \text{ meters of water} Step 2: Multiply the given pressure by the conversion factor 30 \text{ kPa} \times 0.102 \frac{\text{meters of water}}{\text{kPa}} = 3.06 \text{ meters of water} Problem 3: Calculate density of iron block Step 1: Recall the density formula \rho = \frac{m}{V} Step 2: Convert weight to mass using gravitational acceleration m = \frac{F}{g} = \frac{5 \text{ N}}{9.8 \text{ m/s}^{2}} = 0.510 \text{ kg} Step 3: Convert volume to cubic meters V = 200 \text{ cm}^{3} = 0.0002 \text{ m}^{3} Step 4: Calculate density \rho = \frac{0.510 \text{ kg}}{0.0002 \text{ m}^{3}} = 2,550 \frac{\text{kg}}{\text{m}^{3}}
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