Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 1, Problem 57GP
Driving along a crowded freeway, you notice that it takes a tine t to go from one mile marker to the next. When you increase your speed by 7.9 mi/h, the time to go one mile decreases by 13 s. What was your original speed?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A car is traveling at 30 m/s ( approximately 67 mph) on I-95 highway. The driver applies the brakes and the car comes to a stop in 4.0 s . What is the car's acceleration, in m/s2?
Your answer needs to have 2 significant figures, including the negative sign in your answer if needed.
You drive your car from home to school at an average speed of 60 kph East for 1 hr and then continue 80 kph North for 1.5 hrs.
1. What is your average speed for the entire trip?
Construction work in the city means you have to drive at a steady 23 km/h. Once past this zone, you speed up to 56 km/h in 10 s. You reach the freeway and, with the same acceleration, speed up for another 8 s to reach a higher speed. What is this final speed in km/h to one decimal place?
Chapter 1 Solutions
Physics (5th Edition)
Ch. 1.1 - The laws of physics apply to which of the...Ch. 1.2 - Rank the following lengths (A, B, C, and D) in...Ch. 1.3 - Give the dimensions of each of the following...Ch. 1.4 - Rank the following numbers in order of increasing...Ch. 1.5 - To convert a length of 6 ft to its equivalent in...Ch. 1.6 - Give an order-of-magnitude estimate for the speed...Ch. 1.7 - (a) Can two cars have the same speed but different...Ch. 1 - Can dimensional analysis determine whether the...Ch. 1 - If a distance d has units of meters, and a time T...Ch. 1 - Is it possible for two quantities to (a) have the...
Ch. 1 - The frequency of a pendulum is the number of...Ch. 1 - Albert runs 34 m to the right in 10 s. Isaac runs...Ch. 1 - Give an order-of-magnitude estimate for the time...Ch. 1 - Give an order-of-magnitude estimate for the length...Ch. 1 - The Hunger Games The movie The Hunger Games...Ch. 1 - BIO The Thickness of Hair A human hair has a...Ch. 1 - The speed of light in a vacuum is approximately...Ch. 1 - A Fast Computer IBM has a computer it calls the...Ch. 1 - Which of the following equations are dimensionally...Ch. 1 - Which of the following quantities have the...Ch. 1 - Which of the following quantities have the...Ch. 1 - Which of the following quantities have the...Ch. 1 - Velocity is related to acceleration and distance...Ch. 1 - Acceleration is related to distance and time by...Ch. 1 - The time t required for an object to fall from...Ch. 1 - Newtons second law (to be discussed in Chapter 5)...Ch. 1 - The time T required for one complete oscillation...Ch. 1 - The speed of light to five significant figures is...Ch. 1 - A parking lot is 124.3 m long and 41.06 m wide....Ch. 1 - On a fishing trip you catch a 2.77-lb bass, a...Ch. 1 - How many significant figures are there in (a)...Ch. 1 - What is the area of a circle of radius (a) 11.37 m...Ch. 1 - The first several digits of , the ratio of the...Ch. 1 - Rank the following speeds in order of increasing...Ch. 1 - The Ark of the Covenant is described as a chest of...Ch. 1 - A car drives on a highway with a speed of 68 mi/h....Ch. 1 - Angel Falls Water going over Angel Falls, in...Ch. 1 - An electronic advertising sign repeats a message...Ch. 1 - BIO Blue Whales The blue whale (Balaenoptera...Ch. 1 - The Star of Africa The Star of Africa, a diamond...Ch. 1 - BIO Woodpecker Impact When red-headed woodpeckers...Ch. 1 - Predict/Calculate Many highways have a speed limit...Ch. 1 - BIO Mantis Shrimp Peacock mantis shrimps...Ch. 1 - A Jiffy The American physical chemist Gilbert...Ch. 1 - The Mutchkin and the Noggin (a) A mutchkin is a...Ch. 1 - Suppose 1.0 cubic meter of oil is spilled into the...Ch. 1 - The acceleration of gravity is approximately 9.81...Ch. 1 - BIO Squid Nerve Impulses Nerve impulses in giant...Ch. 1 - Give a ballpark estimate of the number of seats in...Ch. 1 - Estimate the speed at which your hair grows. Give...Ch. 1 - Milk is often sold by the gallon in plastic...Ch. 1 - New York is roughly 3000 miles from Seattle. When...Ch. 1 - Which of the following equations are dimensionally...Ch. 1 - Which of the following quantities have the...Ch. 1 - Prob. 41GPCh. 1 - Glacial Speed On June 9, 1983, the lower part of...Ch. 1 - One liter of pure gold weighs 42.5 lb. If you...Ch. 1 - What is the speed in miles per second or a beam or...Ch. 1 - BIO Rattlesnake Frequency A timber rattlesnake...Ch. 1 - BIO A single human red blood cell has a mass of...Ch. 1 - BIO Com Growth Sweet corn plants can grow 4.1 cm...Ch. 1 - BIO Mosquito Courtship Male mosquitoes in the mood...Ch. 1 - Predict/Calcuiate A Porsche sports car can...Ch. 1 - A Speeding Bullet The fastest commercially...Ch. 1 - BIO Human Nerve Fibers Type A nerve fibers in...Ch. 1 - Bio Brain Growth The mass of a newborn baby's...Ch. 1 - The Huygens Probe MASAs Cassini mission to Saturn...Ch. 1 - BIO Spin-Dry Dragonflies Some dragonflies are...Ch. 1 - Acceleration is related to velocity and time by...Ch. 1 - The period T of a simple pendulum is the amount of...Ch. 1 - Driving along a crowded freeway, you notice that...Ch. 1 - Prob. 58PPCh. 1 - Prob. 59PPCh. 1 - Prob. 60PPCh. 1 - Prob. 61PP
Additional Science Textbook Solutions
Find more solutions based on key concepts
Consider the following debate between two students regarding the energy given off by the Sun.
Student 1: I thin...
Lecture- Tutorials for Introductory Astronomy
If acceleration is proportional to the net force or is equal to net force.
Conceptual Physics (12th Edition)
When did hominids arise, and when did modern humans arise?
Life in the Universe (4th Edition)
Whats the approximate value of the gravitational force between a 67-kg astronaut and a 73,000-kg spacecraft whe...
Essential University Physics: Volume 1 (3rd Edition)
13.37 The acceleration due to gravity at the north pole of Neptune is approximately 11.2 m/s2. Neptune has mass...
University Physics (14th Edition)
39.
a. What is the gravitational force of the sun on the earth?
b. What is the gravitational force of the moon...
College Physics: A Strategic Approach (4th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A car starts from 2.0 m/s and accelerates at 4.0 m/s2 for 6.0 s, it coasts for 5.0 s, and then slows down at a rate of 2.0 m/s2 to a stop. How far has it traveled, in meters? Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.arrow_forwardGeorge walks to a friend’s house. He walks 750 meters North, then realizes he walked too far. He turns around and walks 250 meters South. The entire walk takes him 13 seconds. What is his speed per second?arrow_forwardTo burn the fats she accumulated during the lockdown, Katie walks south at a speed of 2.00 m/s for 60.0 minutes. She then turns around and walks north a distance 3000 m in 25.0 minutes. What is her total distance covered?arrow_forward
- A toy car starts from rest and reaches a speed of 5.13[m/s] in 1.13[s]. How far did the car travel in that time? Express your answer in meters.arrow_forward1:41 1. A student drives 40 km south in an attempt to get to a science fair competition before realizing he missed the exit. He turns around and drives back north 15 km before arriving. The total time of travel was 0.75 hr. What is his speed? What is his velocity? 2. A bus leaves Houston at 6:00 am headed toward Austin at a constant speed of 54.3 miles/hour. If Austin is located 190 miles west of Houston, approximately when will the bus arrive in Austin? 3. A girl rides her moped 5 km east and then turns around and rides 2 km west. The entire trip takes fifteen minutes. What are her average speed and velocity? 4. Match each letter to the correct displacement vs. time graph. 7. 8. 9. d. 10. d 11. d 12. a. Moving fast, constant speed f. gradually decreasing speed b. Moving slrow, constant SPeedarrow_forwardA burst water pipe in the city means you have to drive at a steady 12 km/h. Once past this obstacle, you speed up to 52 km/h in 10 s. You reach the freeway and, with the same acceleration, speed up for another 10 s to reach a higher speed. What is this final speed in km/h to one decimal place?arrow_forward
- Garen observed his athletic friends, Aya and Marisa, run. The two girls ran in a 1.5-km straight dirt road. Marisawas a given a ten-second head-start. When Aya ran, she caught up with Marisa, who ran at 3.75 m/s. Both ofthem finished the 1000 m run, with Aya measured to finish the track at 375 seconds.what did they both finish? 1.5km?arrow_forwardA student witnesses a flash of lightning and then t = 1.5 s later the student hears the associated clap of thunder.Sound travels at 343 m/s in the air. What distance from the student is the lightning strike, in meters? Light travels at 3.0 × 108 m/s in the air. How long, t1, in seconds did it take the light to reach the student's eyes after the lightning strike?arrow_forwardA car is traveling at 30 m/s ( approximately 67 mph) on I-95 highway. The driver applies the brakes and the car comes to a stop in 4.0 s . What is the car's acceleration, in m/s2?arrow_forward
- you are driving home on a weekend from school at 55 mi/h for 110 miles. It then starts to snow and you slow to 35mi/h. you arrive home after driving 4 hours and 15 minutes. How far is your hometown from school?arrow_forwardYou have an old American Mustang that you have shipped to Austria. The speed limit on the autobahn in Austria is 130 km/hour. What reading on your speedometer is closest to this speed? O 207 miles/hour O 130 miles/hour O 63 miles/hour 074 miles/hour O 82 miles/hourarrow_forwardA polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km east, and then 1.0 km north to return to its starting point. This trip takes 45 min. What was the bear's average speed and velocity?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Speed Distance Time | Forces & Motion | Physics | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=EGqpLug-sDk;License: Standard YouTube License, CC-BY