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6. The champion and the first-runner up of a fun run have the same mass. Which of the following is true about the two runners? A. the champion used up more power B. both of them used the same power C. the first-runner up used up more power D. neither of the two used up any power

6. The champion and the first-runner up of a fun run have the same mass. Which of the following is true about the two runners? A. the champion used up more power B. both of them used the same power C. the first-runner up used up more power D. neither of the two used up any power

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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6. The champion and the first-runner up of a fun run have the same mass. Which of the following is true about the two runners? A. the champion used up more power B. both of them used the same power C. the first-runner up used up more power D. neither of the two used up any power 7. A 5-kg suitcase is hanging straight down from your hand as you ride a 6-m escalator. Your hand exerts force on the suitcase and this force does work. Which of the following statements is true? A. The work done on the plastic bag as you ride up is equal to the work done as you ride down. B. The work done on the plastic bag as you ride up is lesser than the work done as you ride down. C. The work done on the plastic bag as you ride up is greater than the work done as you ride down. D. None of these. 8. A waiter lifts a tray of spaghetti and drinks with a total mass of 2 kg from the table. He then delivers the tray to the customer on the other side of the restaurant and then places it on the table. If the waiter walks across the room with a constant speed, how much work does he do on the tray while walking? C. More than zero joules A. Zero Joules D. None of these B. Less than zero joules
Transcribed Image Text:6. The champion and the first-runner up of a fun run have the same mass. Which of the following is true about the two runners? A. the champion used up more power B. both of them used the same power C. the first-runner up used up more power D. neither of the two used up any power 7. A 5-kg suitcase is hanging straight down from your hand as you ride a 6-m escalator. Your hand exerts force on the suitcase and this force does work. Which of the following statements is true? A. The work done on the plastic bag as you ride up is equal to the work done as you ride down. B. The work done on the plastic bag as you ride up is lesser than the work done as you ride down. C. The work done on the plastic bag as you ride up is greater than the work done as you ride down. D. None of these. 8. A waiter lifts a tray of spaghetti and drinks with a total mass of 2 kg from the table. He then delivers the tray to the customer on the other side of the restaurant and then places it on the table. If the waiter walks across the room with a constant speed, how much work does he do on the tray while walking? C. More than zero joules A. Zero Joules D. None of these B. Less than zero joules
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