21st Century Astronomy 6E
6th Edition
ISBN: 9780393690675
Author: Laura Kay, Stacy Palen, George Blumenthal
Publisher: W. W. Norton
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Chapter 1, Problem 33QP
(a)
To determine
The distance travelled by the car in
(b)
To determine
The distance travelled by the car in
(c)
To determine
The distance travelled by the car in
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2. A car is traveling at a speed of 31 m/s.
a. What is its speed in kilometers per hour?
b. Is it exceeding the 90 km/h speed limit?
A physics student took a 4 hours car trip to visit a friend. In the first hour, he traveled 100 km at constant speed. In the two hours, he stopped after his car developed some trouble. In the last hour, he traveled 90 km.What was his average speed during
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Chapter 1 Solutions
21st Century Astronomy 6E
Ch. 1.1 - Prob. 1.1CYUCh. 1.2 - Prob. 1.2CYUCh. 1.3 - Prob. 1.3CYUCh. 1 - Prob. 1QPCh. 1 - Prob. 2QPCh. 1 - Prob. 3QPCh. 1 - Prob. 4QPCh. 1 - Prob. 5QPCh. 1 - Prob. 6QPCh. 1 - Prob. 7QP
Ch. 1 - Prob. 8QPCh. 1 - Prob. 9QPCh. 1 - Prob. 10QPCh. 1 - Prob. 11QPCh. 1 - Prob. 12QPCh. 1 - Prob. 13QPCh. 1 - Prob. 14QPCh. 1 - Prob. 15QPCh. 1 - Prob. 16QPCh. 1 - Prob. 17QPCh. 1 - Prob. 18QPCh. 1 - Prob. 19QPCh. 1 - Prob. 20QPCh. 1 - Prob. 21QPCh. 1 - Prob. 22QPCh. 1 - Prob. 23QPCh. 1 - Prob. 24QPCh. 1 - Prob. 25QPCh. 1 - Prob. 26QPCh. 1 - Prob. 27QPCh. 1 - Prob. 28QPCh. 1 - Prob. 29QPCh. 1 - Prob. 30QPCh. 1 - Prob. 31QPCh. 1 - Prob. 32QPCh. 1 - Prob. 33QPCh. 1 - Prob. 34QPCh. 1 - Prob. 35QPCh. 1 - Prob. 36QPCh. 1 - Prob. 37QPCh. 1 - Prob. 38QPCh. 1 - Prob. 39QPCh. 1 - Prob. 40QPCh. 1 - Prob. 41QPCh. 1 - Prob. 42QPCh. 1 - Prob. 43QPCh. 1 - Prob. 44QPCh. 1 - Prob. 45QP
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- A horse travels 65 km/hr with a distance of 5.98 km . a. How long does the horse travels? b. What is the new speed of the horse if he travels twice his time travelled?arrow_forwardA car travels with an average speed of 8.00 meter/second. A. What is the speed in km/s? B. What is the speed in mile/hour? Hint: 1km =1000.0 metersarrow_forwardA stone is thrown straight up from the edge of a roof, 675 feet above the ground, at a speed of 18 feet per second.A. Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later? .Don't forget to enter the correct units.B. At what time does the stone hit the ground? .C. What is the velocity of the stone when it hits the ground? .arrow_forward
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- E2. A walker covers a distance of 1.4 km in a time of 30 minutes. What is the average speed of the walker for this distance in km/h? E9. A car travels with an average speed of 58 MPH. What is this speed in km/h?arrow_forwardThe car moves in a straight line such that for a short time its velocity is defined by v = (2t3 + 3t) m/s, where t is in seconds. 1. What is its position in meters when t = 2 seconds, when t = 0, so = 5 meters? a. 14 b. 9 c. 15 2. What is its acceleration in m/s2 when t = 2 seconds, when t = 0, so = 5 meters? a. 24 b. 30 c. 15arrow_forwardI left my house at 7 AM, drove 1100 km and arrived in South Carolina at 6 PM. My speed at 3 PM was: A. unknown, there's not enough info B. 105 km/h, that's the speed limit C. 77 km/h D. 100 km/harrow_forward
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