### Create a StudySoup account

#### Be part of our community, it's free to join!

Already have a StudySoup account? Login here

# GENERAL PHYSICS I PHY 317K

UT

GPA 3.77

### View Full Document

## 37

## 0

## Popular in Course

## Popular in Physics 2

This 5 page Class Notes was uploaded by Malvina Orn on Monday September 7, 2015. The Class Notes belongs to PHY 317K at University of Texas at Austin taught by Jack Ritchie in Fall. Since its upload, it has received 37 views. For similar materials see /class/181822/phy-317k-university-of-texas-at-austin in Physics 2 at University of Texas at Austin.

## Reviews for GENERAL PHYSICS I

### What is Karma?

#### Karma is the currency of StudySoup.

#### You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/07/15

Example 1 The density of iron is 787 gcm3 and the density of lead is 1135 gcrng What is the volume of a 1000 lb block of iron What is the weight of a cubic meter of lead in pounds Recall 44 N 1 lb Solution W mg pVg so V Wpg Then for the iron block 10001b 10001b M V g In g 1kg 110th 3 m 787 QXQBS Q 7871000g 9857 For the lead 1k 100 3 W pVg 1135 3 ix cm 11113 989 111x105N crn3 1000g lrn s2 ln pounds 11b W111gtlt105Nlt gt25x1041b 44N Example 2 What is the pressure at the bottom of a column of water that is 30 ft in height assuming the water is open to the atmosphere at the top of the column Solution Use the fact p pext pgh to nd the pressure at any depth in the water Here pext latm 101 x 105 Pa the pressure of the atmosphere assuming usual conditions h30ftlt121ngt lt264pmgtlt 1m gt91m 1ft lin lOOom p pm pgh 101 x 105 Pa 1000 kgm398ms29lm Then p 101 x 105 Pa 089 x 105 Pa 190 Pa 188 atm Example 3 Approximately What is the air pressure at the top of Mount Everest Solution Pressure p at an altitude h is given by 7 p h p 2906 0 7 Where p0 and p0 are the density and pressure of air at h 0 ie sea level Using p0 101 x 105 Pa and p0 121 kgrng p0 101 x 105 Pa 3 7 85 10 85k gpo 98ms2121kgn13 x m m h p p0 85km The altitude of Mount Everest is about 88 km 29028 ft giving 19 pOe 036190 036 atrn 36 X 104 Example 4 A U tube is partly lled with mercury Water which does not mix with mercury is poured into one side If the water column is 30 cm in height how much does the mercury rise above its original level on the other side of the U tube Solution Draw a gure If the weight of the water pushes the mercury down by a distance d on one side then it also pushes it up by a distance d on the other At the bottom of the water the pressure in the mercury is the same as on the other side of the tube at the same level Thus the weight of the liquids above that level must be the same pwaterg30 cm pmercuryg2d Solve for d 3 d ipwater 30 cm W 15cm 11cm pmercury 2 Example 5 A block of wood density 750 kgmg is placed in a tank of water The block oats What fraction of the volume of the block is submerged below the surface of the water Solution Draw a gure Take the density of water to be 1000 kgmg lf Vdis is the volume of water displaced by the wood as it oats then the bouyant force Fb is given by Fb pwaterldisg according to Archimedes7 Principle lf Vtot is the total volume of the wooden block the weight of the block is W pblockltotg When an object oats the magnitudes of these opposing forces are equal Fb W Then pwatervdisg pblockltotg7 so the fraction of the blocks volume under water is Vdis i pblock i 750 kg 1113 i 075 ltot pwater

### BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.

### You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

## Why people love StudySoup

#### "Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

#### "When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the material...plus I made $280 on my first study guide!"

#### "I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

#### "It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

### Refund Policy

#### STUDYSOUP CANCELLATION POLICY

All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email support@studysoup.com

#### STUDYSOUP REFUND POLICY

StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here: support@studysoup.com

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to support@studysoup.com

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.