0. Math Review

1. Intro to Physics Units

2. 1D Motion / Kinematics

3. Vectors

4. 2D Kinematics

5. Projectile Motion

6. Intro to Forces (Dynamics)

7. Friction, Inclines, Systems

8. Centripetal Forces & Gravitation

9. Work & Energy

10. Conservation of Energy

11. Momentum & Impulse

12. Rotational Kinematics

13. Rotational Inertia & Energy

14. Torque & Rotational Dynamics

15. Rotational Equilibrium

16. Angular Momentum

17. Periodic Motion

18. Waves & Sound

19. Fluid Mechanics

20. Heat and Temperature

21. Kinetic Theory of Ideal Gases

22. The First Law of Thermodynamics

23. The Second Law of Thermodynamics

24. Electric Force & Field; Gauss' Law

25. Electric Potential

26. Capacitors & Dielectrics

27. Resistors & DC Circuits

28. Magnetic Fields and Forces

29. Sources of Magnetic Field

30. Induction and Inductance

31. Alternating Current

32. Electromagnetic Waves

33. Geometric Optics

34. Wave Optics

36. Special Relativity

[BOOK PHYS] !CLUTCH

Oceans on Mars. Scientists have found evidence that Mars may once have had an ocean 0.500 km deep. The acceleration due to gravity on Mars is 3.71 m/s^2. (a) What would be the gauge pressure at the bottom of such an ocean, assuming it was freshwater? (b) To what depth would you need to go in the earth's ocean to experience the same gauge pressure?

Exploring Venus. The surface pressure on Venus is 92 atm, and the acceleration due to gravity there is 0.894g. In a future exploratory mission, an upright cylindrical tank of benzene is sealed at the top but still pressurized at 92 atm just above the benzene. The tank has a diameter of 1.72 m, and the benzene column is 11.50 m tall. Ignore any effects due to the very high temperature on Venus. (b) What force does the Venusian atmosphere exert on the outside surface of the bottom of the tank?

An aquarium of length L , width (front to back) W , and depth D is filled to the top with liquid of density p . (b) Find an expression for the force of the liquid on the front window of the aquarium.

BIO In intravenous feeding, a needle is inserted in a vein in the patient's arm and a tube leads from the needle to a reservoir of fluid (density 1050 kg/m^3) located at height h above the arm. The top of the reservoir is open to the air. If the gauge pressure inside the vein is 5980 Pa, what is the minimum value of h that allows fluid to enter the vein? Assume the needle diameter is large enough that you can ignore the viscosity of the liquid.

Anderson Video - Longest Straw Superman can Drink Through

Calculating Pressure in Liquids

You are designing a diving bell to withstand the pressure of seawater at a depth of 250 m. (a) What is the gauge pressure at this depth? (You can ignore changes in the density of the water with depth.) (b) At this depth, what is the net force due to the water outside and the air inside the bell on a circular glass window 30.0 cm in diameter if the pressure inside the diving bell equals the pressure at the surface of the water? (Ignore the small variation of pressure over the surface of the window.)

The deepest known point on Earth is called the Mariana Trench, at ~11,000 m (~36,000 ft). If the surface area of the average human ear is 20 cm2, how much average force would be exerted on your ear at that depth?<img src="https://cdn.clutchprep.com/problem_images/76115-2283f9ed252b9af3.png" alt="" />

Glycerin is poured into an open U-shaped tube until the height in both sides is 20 cm. Ethyl alcohol is then poured into one arm until the height of the alcohol column is 20 cm. The two liquids do not mix. What is the difference in height between the top surface of the glycerin and the top surface of the alcohol?

Anderson Video - Diving to a Pressure of Two Atmospheres

(a) 1.2×104 N; (b) 1200 Pa

(a) 1.2×105 N; (b) 120 Pa

(a) 1.2×105 N; (b) 1200 Pa

(a) 1.2×106 N; (b) 120 Pa

A large warehouse is 100 m wide, 100 m deep, 10 m high: a) What is the total weight of the air inside the warehouse? b) How much pressure does the weight of the air apply on the floor?

Suppose the average speed of blood in the aorta is <math display='inline'><mrow><mn>0</mn><mo>.</mo><mn>26</mn><mtext></mtext><mtext>&#x00A0;m/s</mtext></mrow></math>, and the diameter is </IM>2.0 cm.</IM> What is the pressure gradient in this aorta due to the viscosity of blood (assume a human body temperature)?

Pressure In Air and In Liquids

BIO. The lower end of a long plastic straw is immersed below the surface of the water in a plastic cup. An average person sucking on the upper end of the straw can pull water into the straw to a vertical height of 1.1 m above the surface of the water in the cup. (a) What is the lowest gauge pressure that the average person can achieve inside his lungs? (b) Explain why your answer in part (a) is negative.

Anderson Video - Bernoulli's Equation

What is PRESSURE? Simple Physics tutorial

Introduction to Pressure & Fluids - Physics Practice Problems

GCSE Physics - What is Pressure?  #48

The 1.0-m-tall cylinder shown in FIGURE CP14.71 contains air at a pressure of 1 atm. A very thin, frictionless piston of negligible mass is placed at the top of the cylinder, to prevent any air from escaping, then mercury is slowly poured into the cylinder until no more can be added without the cylinder overflowing. What is the height h of the column of compressed air? <img src="https://lightcat-files.s3.amazonaws.com/problem_images/86f3c259d0e406b9-1680698852778.jpg" alt="" /> Hint: Boyle's law, which you learned in chemistry, says p₁V₁ = p₂V₂ for a gas compressed at constant temperature, which we will assume to be the case.

Anderson Video - Pressure Under Water

It's possible to use the ideal-gas law to show that the density of the earth's atmosphere decreases exponentially with height. That is, p = p₀ exp (─z/z₀), where z is the height above sea level, p₀ is the density at sea level (you can use the Table 14.1 value), and z₀ is called the scale height of the atmosphere. (b) What is the density of the air in Denver, at an elevation of 1600 m? What percent of sea-level density is this?

Fbot − Ftop = 800 N

Fbot − Ftop = 1000 N

Fbot − Ftop = 8,000 N

Fbot − Ftop = 10,000 N

A wooden cube, 1 m on all sides and having density 800 kg/m3 , is held under water in a large container by a string, as shown below. The top of the cube is exactly 2 m below the water line. Calculate the difference between the force applied by water to the top and to the bottom faces of the cube (Hint:calculate the two forces, then subtract.&nbsp;Use g=10 m/s2.)<img src="https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/images/6d33eef7"alt=""/>

A friend asks you how much pressure is in your car tires. You know that the tire manufacturer recommends 30 psi, but it's been a while since you've checked. You can't find a tire gauge in the car, but you do find the owner's manual and a ruler. Fortunately, you've just finished taking physics, so you tell your friend, 'I don't know, but I can figure it out.' From the owner's manual you find that the car's mass is 1500 kg. It seems reasonable to assume that each tire supports one-fourth of the weight. With the ruler you find that the tires are 15 cm wide and the flattened segment of the tire in contact with the road is 13 cm long. What answer—in psi—will you give your friend?

A closed container is partially filled with water. Initially, the air above the water is at atmospheric pressure (1.01×10^5 Pa) and the gauge pressure at the bottom of the water is 2500 Pa. Then additional air is pumped in, increasing the pressure of the air above the water by 1500 Pa. (a) What is the gauge pressure at the bottom of the water?

A tall cylindrical beaker 10 cm in radius is placed on a picnic table outside. You pour 5 L of an 8,000 kg/m3 liquid and 10 L of a 6,000 kg/m3 liquid into. Calculate the total pressure at the bottom of the beaker. (Use g=10 m/s2.)<img src="https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/images/8f2a5d19"alt=""/>

There is not enough information to answer the question.

The pressure gradient in a pipe carrying water is <math display='inline'><mrow><mrow><mn>600</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">Pa</mi></mrow><mo>/</mo> <mi mathvariant="normal" class="MathML-Unit">m</mi><mo>.</mo></mrow></math> What pressure gradient would be required to maintain the same flow rate in the same pipe if it were carrying olive oil? Treat the flow as the flow of a viscous fluid. The viscosity of water is <math display='inline'><mrow><mn>1.0</mn><mo>&#x00D7;</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>&#x2212;</mo><mn>3</mn></mrow></msup><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">Pa</mi><mo>&#x22C5;</mo><mi mathvariant="normal" class="MathML-Unit">s</mi></mrow></math> and the viscosity of olive oil is <math display='inline'><mrow><mn>8.2</mn><mo>&#x00D7;</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>&#x2212;</mo><mn>2</mn></mrow></msup><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">Pa</mi><mo>&#x22C5;</mo><mi mathvariant="normal" class="MathML-Unit">s</mi></mrow></math>.

BIO. There is a maximum depth at which a diver can breathe through a snorkel tube (Fig. E12.17) because as the depth increases, so does the pressure difference, which tends to collapse the diver's lungs. Since the snorkel connects the air in the lungs to the atmosphere at the surface, the pressure inside the lungs is atmospheric pressure. What is the external– internal pressure difference when the diver's lungs are at a depth of 6.1 m (about 20 ft)? Assume that the diver is in fresh-water. (A scuba diver breathing from compressed air tanks can operate at greater depths than can a snorkeler, since the pressure of the air inside the scuba diver's lungs increases to match the external pressure of the water.)<img src="https://lightcat-files.s3.amazonaws.com/problem_images/2285c6b18a2bb09f-1673554250349.jpg" alt="" />

Intro to Pressure

What is Pressure? | Physics | Don't Memorise

Pressure - Intro to Physics

Pressure and Atmospheric Pressure

At point A, a hose ejects water at a speed of <math display='inline'><mrow><mn>5</mn><mo>.</mo><mn>10</mn><mtext></mtext><mtext>&#x00A0;m/s</mtext></mrow></math>. Point B is upstream from, and 30.0 cm above, the outlet. If the water is moving at <math display='inline'><mrow><mn>2</mn><mo>.</mo><mn>40</mn><mtext></mtext><mtext>&#x00A0;m/s</mtext></mrow></math> at point B, what is the internal pressure of the water at B? Use <math display='inline'><mrow><mn>101</mn><mo>.</mo><mn>3</mn><mtext>&#x00A0;</mtext><mtext>kPa</mtext></mrow></math> for atmospheric pressure and <math display='inline'><mrow><mn>1000</mn><msup><mrow><mtext>&#x00A0;</mtext><mtext>kg/m</mtext></mrow><mn>3</mn></msup></mrow></math> for the density of water.

BIO. Ear Damage from Diving. If the force on the tympanic membrane (eardrum) increases by about 1.5 N above the force from atmospheric pressure, the membrane can be damaged. When you go scuba diving in the ocean, below what depth could damage to your eardrum start to occur? The eardrum is typically 8.2 mm in diameter. (Consult Table 12.1.)

A barrel contains a 0.120-m layer of oil floating on water that is 0.250 m deep. The density of the oil is 600 kg/m^3. (a) What is the gauge pressure at the oil–water interface? (b) What is the gauge pressure at the bottom of the barrel?

Gas Pressure: The Basics

What is the minimum hose diameter of an ideal vacuum cleaner that could lift a 10 kg (22 lb) dog off the floor?

Introduction to Pressure

Anderson Video - Bernoulli's Equation and the Water Tower

Learn the toughest concepts covered in Physics with step-by-step video tutorials and practice problems by world-class tutors

Patrick

Physics

https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/physics

#FFFFFF

Cognito

Don't Memorise