Physics 1 Problem Solutions 128

Physics 1 Problem Solutions 128 - 124 Chapt 14 Gravity 014...

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Unformatted text preview: 124 Chapt. 14 Gravity 014 qmult 00250 2 1 3 mod. memory: mass and weight above Earth Extra keywords: physci KB-59-25 13. An object has mass x and weight y on the Earth’s surface. What is its mass and weight at 2 Earth radii above the Earth’s surface? Note ABOVE the Earth’s surface, not FROM the Earth’s center. a) x and y/ 2. b) x/ 2 and y/ 2. c) x and y/ 9. d) x and y/ 4. e) x/ 9 and y/ 9. 014 qmult 00300 1 4 4 easy deducto-memory: gravitational field 1 14. “Let’s play Jeopardy ! For $100, the answer is: It can be defined as the gravitational force per unit mass at any point in space. But more fundamentally, it is a vector field that is the cause of the gravitational force.” What is , Alex? a) the gravitational force b) gravity c) levity d) the gravitational field e) Gauss’s law 014 qmult 00310 1 1 3 easy memory: gravitational field 2 15. The usual symbol for the gravitational field is vectorg which has magnitude g . A special case of the gravitational field is the one near the Earth’s surface. For this case, the gravitational field hasgravitational field is the one near the Earth’s surface....
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