7. An astronaut on a strange planet has a mass of 80 kg and a weight of 240 N. What is the value ofacceleration due to gravity on this planet?a. 3 m/s²b. 8 m/s²c. 10 m/s²d. None of the above8. Thunder is heard 5 seconds after the instant lightning bolt flash is noticed. Sound travels at 1125ft/s. How far away did the lightning bolt strike?0.5 milea.b.1.0 milec. 2.5 miled. 5.0 mile9. A 2 kg mass is released at the top of a frictionless slide that is 3 m height. What is the kineticenergy of the mass when it reaches the bottom?9J18 J30 J60 Ja.b.C.d.

Given data: Mass (m) = 80 kg Weight (W) = 240 N Required: The value of the acceleration due to…

Answered: 7. An astronaut on a strange planet has…

7. An astronaut on a strange planet has a mass of 80 kg and a weight of 240 N. What is the value of acceleration due to gravity on this planet? a. 3 m/s² b. 8 m/s² 10 m/s² C.

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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Concept explainers

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.

Question

7. An astronaut on a strange planet has a mass of 80 kg and a weight of 240 N. What is the value of
acceleration due to gravity on this planet?
a. 3 m/s²
b. 8 m/s²
c. 10 m/s²
d. None of the above
8. Thunder is heard 5 seconds after the instant lightning bolt flash is noticed. Sound travels at 1125
ft/s. How far away did the lightning bolt strike?
0.5 mile
a.
b.
1.0 mile
c. 2.5 mile
d. 5.0 mile
9. A 2 kg mass is released at the top of a frictionless slide that is 3 m height. What is the kinetic
energy of the mass when it reaches the bottom?
9J
18 J
30 J
60 J
a.
b.
C.
d.

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