Quiz 7

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Arizona State University *

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121

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Physics

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Apr 3, 2024

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pdf

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7

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3/1/24, 11:43 PM Quiz 7 https://session.masteringphysics.com/myct/assignmentPrintView?assignmentID= 0 1/7 Quiz 7 Due: 11:59pm on Tuesday, February 27, 2024 You will receive no credit for items you complete after the assignment is due. Grading Policy Conceptual Question 13.04 Part A If the mass of the earth and all objects on it were suddenly doubled, but the size remained the same, the acceleration due to gravity at the surface would become ANSWER: Correct Conceptual Question 13.07 Part A A certain planet has an escape speed . If another planet has twice the radius and twice the mass of the first planet, its escape speed will be ANSWER: 1/2 of what it now is. 4 times what it now is. 1/4 of what it now is. the same as it now is. 2 times what it now is.
3/1/24, 11:43 PM Quiz 7 https://session.masteringphysics.com/myct/assignmentPrintView?assignmentID= 0 2/7 Correct Conceptual Question 13.08 Part A A satellite is orbiting the earth. If a payload of material is added until it doubles the satellite's mass, the earth's pull of gravity on this satellite will double but the satellite's orbit will not be affected. ANSWER: Correct Conceptual Question 13.11 Part A The reason an astronaut in an earth satellite feels weightless is that ANSWER: /2. V/ . V. 2 V. . True False
3/1/24, 11:43 PM Quiz 7 3/7 Correct Problem 13.29 Part A You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.8 × 10 7 m and its rotation period to be 22.3 hours. You have previously determined that the planet orbits 3.7 × 10 11 m from its star with a period of 402 earth days. Once on the surface you find that the acceleration due to gravity is 98.2 m/s 2 . What are the mass of (a) the planet and (b) the star? (G = 6.67 × 10 -11 N · m 2 /kg 2 ) ANSWER: Correct Conceptual Question 15.02 Part A https://session.masteringphysics.com/myct/assignmentPrintView?assignmentID= 0 the astronaut is falling. the astronaut's acceleration is zero. the astronaut is at a point in space where the effects of the moon's gravity and the earth's gravity cancel. the astronaut is beyond the range of the earth's gravity. this is a psychological effect associated with rapid motion. (a) 1.2 × kg, (b) 1.5 × kg (a) 1.2 × kg, (b) 2.5 × kg (a) 2.2 × kg, (b) 1.5 × kg (a) 2.2 × kg, (b) 2.5 × kg
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