Explanation Given data: “J” drives 25 miles at 55 mph for first time and 15 miles at 70mph for next time. Explanation: Write the expression for the speed. speed = distance traveled in a given time interval time interval (1) Modify equation (1) for first speed as follows. speed 1 = ( distance traveled in a given time interval ) 1 ( time interval ) 1 Substitute 25 miles for ( distance traveled in a given time interval ) 1 and 55 mph for ( time interval ) 1 , speed 1 = 25 miles 55 mph = 0.4545 h Modify equation (1) for next speed as follows. speed 2 = ( distance traveled in a given time interval ) 2 ( time interval ) 2 Substitute 15 miles for ( distance traveled in a given time interval ) 2 and 70 mph for ( time interval ) 2 , speed 2 = 15 miles 70 mph = 0

College Physics: A Strategic Approach Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition) (What's New in Astronomy & Physics)

4th Edition

ISBN: 9780134641492

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

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Chapter 1, Problem 56GP

To determine

The average speed of the trip.

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Chapter 1, Problem 55GP

Chapter 1, Problem 57GP

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College Physics: A Strategic Approach Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition) (What's New in Astronomy & Physics)

Ch. 1 - A softball player slides into second base. Use the...Ch. 1 - A car travels to the left at a steady speed for a...Ch. 1 - A ball is dropped from the roof of a tall building...Ch. 1 - Prob. 5CQ Ch. 1 - Give an example of a trip you might take in your...Ch. 1 - Write a sentence or two describing the difference...Ch. 1 - The motion of a skateboard along a horizontal axis...Ch. 1 - You are standing on a straight stretch of road and...Ch. 1 - Two friends watch a jogger complete a 400 m lap...Ch. 1 - A softball player hits the ball and starts running...

Ch. 1 - A child is sledding on a smooth, level patch of...Ch. 1 - A skydiver jumps out of an airplane. Her speed...Ch. 1 - Your roommate drops a tennis ball from a...Ch. 1 - A car is driving north at a steady speed. It makes...Ch. 1 - Prob. 16CQ Ch. 1 - Prob. 17CQ Ch. 1 - A student walks 1.0 mi west and then 1.0 mi north....Ch. 1 - You throw a rock upward. The rock is moving...Ch. 1 - Which of the following motions could be described...Ch. 1 - Which of the following motions is described by the...Ch. 1 - A bird flies 3.0 km due west and then 2.0 km due...Ch. 1 - Weddell seals make holes in sea ice so that they...Ch. 1 - A bird flies 3.0 km due west and then 2.0 km due...Ch. 1 - Prob. 25MCQ Ch. 1 - Compute 3.24 m + 0.532 m to the correct number of...Ch. 1 - Prob. 27MCQ Ch. 1 - The earth formed 4.57 109 years ago. What is this...Ch. 1 - Prob. 29MCQ Ch. 1 - A car skids to a halt to avoid hitting an object...Ch. 1 - A man rides a bike along a straight road for 5...Ch. 1 - Prob. 3P Ch. 1 - Figure P1.4 shows Sue along the straight-line path...Ch. 1 - Prob. 5P Ch. 1 - Prob. 6P Ch. 1 - Keira starts at position x = 23 m along a...Ch. 1 - A car travels along a straight east-west road. A...Ch. 1 - Foraging bees often move in straight lines away...Ch. 1 - A security guard walks at a steady pace, traveling...Ch. 1 - List the following items in order of decreasing...Ch. 1 - Prob. 12P Ch. 1 - It takes Harry 35 s to walk from x = 12 m to x = ...Ch. 1 - A dog trots from x = 12 m to x = 3 m in 10 s....Ch. 1 - Prob. 15P Ch. 1 - Convert the following to SI units: a. 9.12 s b....Ch. 1 - Convert the following to SI units: a. 8.0 in b. 66...Ch. 1 - Convert the following to SI units: a. 1.0 hour b....Ch. 1 - How many significant figures does each of the...Ch. 1 - How many significant figures does each of the...Ch. 1 - Compute the following numbers to three significant...Ch. 1 - lf you make multiple measurements of your height,...Ch. 1 - Prob. 23P Ch. 1 - Blades of grass grow from the bottom, so, as...Ch. 1 - Estimate the average speed, in m/s, with which the...Ch. 1 - Loveland, Colorado, is 18 km due south of Fort...Ch. 1 - A city has streets laid out in a square grid, with...Ch. 1 - Joe and Max shake hands and say goodbye. Joe walks...Ch. 1 - Prob. 29P Ch. 1 - A butterfly flies from the top of a tree in the...Ch. 1 - A garden has a circular path of radius 50 m. John...Ch. 1 - Prob. 32P Ch. 1 - Migrating geese tend to travel at approximately...Ch. 1 - A circular test track for cars in England has a...Ch. 1 - Black vultures excel at gliding flight; they can...Ch. 1 - Prob. 36P Ch. 1 - Prob. 37P Ch. 1 - A hiker is climbing a steep 10 slope. Her...Ch. 1 - A ball on a porch rolls 60 cm to the porch's edge,...Ch. 1 - A kicker punts a football from the very center of...Ch. 1 - A squirrel completing a short glide travels in a...Ch. 1 - A squirrel in a typical long glide covers a...Ch. 1 - Problems 39 through 45 are motion problems similar...Ch. 1 - Problems 39 through 45 are motion problems similar...Ch. 1 - Prob. 45GP Ch. 1 - Problems 39 through 45 are motion problems similar...Ch. 1 - Problems 39 through 45 are motion problems similar...Ch. 1 - Problems 39 through 45 are motion problems similar...Ch. 1 - Problems 39 through 45 are motion problems similar...Ch. 1 - Prob. 50GP Ch. 1 - Prob. 51GP Ch. 1 - Prob. 52GP Ch. 1 - Prob. 53GP Ch. 1 - Prob. 54GP Ch. 1 - Prob. 55GP Ch. 1 - Prob. 56GP Ch. 1 - Prob. 57GP Ch. 1 - Prob. 58GP Ch. 1 - Prob. 59GP Ch. 1 - The end of Hubbard Glacier in Alaska advances by...Ch. 1 - The earth completes a circular orbit around the...Ch. 1 - Prob. 62GP Ch. 1 - Prob. 63GP Ch. 1 - Shannon decides to check the accuracy of her...Ch. 1 - The Nardo ring is a circular test track for cars....Ch. 1 - Motor neurons in mammals transmit signals from the...Ch. 1 - Satellite data taken several times per hour on a...Ch. 1 - The bacterium Escherichia coli (or E. coli) is a...Ch. 1 - The bacterium Escherichia coli (or E. coli) is a...Ch. 1 - The sun is 30 above the horizon. It makes a...Ch. 1 - Weddell seals foraging in open water dive toward...Ch. 1 - Prob. 72GP Ch. 1 - Whale sharks swim forward while ascending or...Ch. 1 - Starting from its nest, an eagle flies at constant...Ch. 1 - John walks 1.00 km north, then turns right and...Ch. 1 - The images of trees in Figure P1.68 come from a...Ch. 1 - The images of trees in Figure P1.68 come from a...Ch. 1 - The images of trees in Figure P1.68 come from a...

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