If a pressure of 5882 N/m? is applied by a force of 3120 N, what is the area it is applied over?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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### Physics Problem Set

#### Question 1
If a pressure of 5882 N/m² is applied by a force of 3120 N, what is the area it is applied over?

#### Question 2
A 0.37 m³ of gas is allowed to expand to 0.75 m³. As this happens, the temperature goes from 21°C to 28.3°C. If the initial pressure was 39.8 N/m², what is the new pressure?

#### Question 3
An ideal gas with a volume of 0.867 m³ has a temperature of 119°C. If there are 8.72 x 10²⁴ particles, what is the pressure? Hint: Make sure to convert particles to moles.
Transcribed Image Text:### Physics Problem Set #### Question 1 If a pressure of 5882 N/m² is applied by a force of 3120 N, what is the area it is applied over? #### Question 2 A 0.37 m³ of gas is allowed to expand to 0.75 m³. As this happens, the temperature goes from 21°C to 28.3°C. If the initial pressure was 39.8 N/m², what is the new pressure? #### Question 3 An ideal gas with a volume of 0.867 m³ has a temperature of 119°C. If there are 8.72 x 10²⁴ particles, what is the pressure? Hint: Make sure to convert particles to moles.
### Educational Exercises on Fluid Mechanics

**Problem 4: Hydraulic System Forces**
When using a hydraulic system, the smaller piston has an area of \(0.25 \, \text{m}^2\) and is pressed with a force of \(185.0 \, \text{N}\). If the larger piston is \(1.33 \, \text{m}^2\) in area, how much force does it feel?

**Problem 5: Pressure at the Bottom of a Pool**
Find the pressure at the bottom of a pool at sea level (\(101325 \, \text{N/m}^2\)) filled with water (\(1000 \, \text{kg/m}^3\)) if the pool is \(4.66 \, \text{m}\) deep.

**Problem 6: Buoyancy of a Submerged Box**
A large box falls off a ship into the ocean (\(\rho \, \text{water}=1000 \, \text{kg/m}^3\)). If a buoyant force of \(7,654 \, \text{N}\) is applied by the water once the box is submerged, what is the volume of the box?

**Problem 7: Drag on a Falling Person**
How much drag is acting on a person falling at \(9.00 \, \text{m/s}\)? Assume the drag coefficient is 1, the cross-sectional area of the person is \(0.56 \, \text{m}^2\), and the density of air is \(1.3 \, \text{kg/m}^3\).
Transcribed Image Text:### Educational Exercises on Fluid Mechanics **Problem 4: Hydraulic System Forces** When using a hydraulic system, the smaller piston has an area of \(0.25 \, \text{m}^2\) and is pressed with a force of \(185.0 \, \text{N}\). If the larger piston is \(1.33 \, \text{m}^2\) in area, how much force does it feel? **Problem 5: Pressure at the Bottom of a Pool** Find the pressure at the bottom of a pool at sea level (\(101325 \, \text{N/m}^2\)) filled with water (\(1000 \, \text{kg/m}^3\)) if the pool is \(4.66 \, \text{m}\) deep. **Problem 6: Buoyancy of a Submerged Box** A large box falls off a ship into the ocean (\(\rho \, \text{water}=1000 \, \text{kg/m}^3\)). If a buoyant force of \(7,654 \, \text{N}\) is applied by the water once the box is submerged, what is the volume of the box? **Problem 7: Drag on a Falling Person** How much drag is acting on a person falling at \(9.00 \, \text{m/s}\)? Assume the drag coefficient is 1, the cross-sectional area of the person is \(0.56 \, \text{m}^2\), and the density of air is \(1.3 \, \text{kg/m}^3\).
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