A 42-inch Smart TV of mass 2.5 x 10' kg experiences a gravitational force when on the Earth's surface. A physicist estimates that Earth has a mass of 5.972 x 1024 kg and a diamete of 1.2742 x 10* km. State: The equation used to represent Newton's law of gravitation, and The equation for the gravitational field strength, g, experienced b an object on the Earth's surface. By considering (i) and (ii), calculate the gravitational field strengt g. for the TV at Earth's surface. The TV is moved further away from Earth's surface to a distance twice the radius of Earth. Will the effect of the gravitation field strength be the same on the TV? Explain your answer.

A 42-inch Smart TV of mass 2.5 x 10' kg experiences a gravitational force when on the Earth's surface. A physicist estimates that Earth has a mass of 5.972 x 1024 kg and a diamete of 1.2742 x 10* km. State: The equation used to represent Newton's law of gravitation, and The equation for the gravitational field strength, g, experienced b an object on the Earth's surface. By considering (i) and (ii), calculate the gravitational field strengt g. for the TV at Earth's surface. The TV is moved further away from Earth's surface to a distance twice the radius of Earth. Will the effect of the gravitation field strength be the same on the TV? Explain your answer.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter7: Gravity

Section: Chapter Questions

Problem 45PQ: Figure P7.45 shows a picture of American astronaut Clay Anderson experiencing weightlessness on...

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In your own words, describe the difference between the terms gravitational force and gravitational field.
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Review. A student proposes to study the gravitational force by suspending two 100.0-kg spherical objects at the lower ends of tables from the ceiling of a tall cathedral and measuring the deflection of the cables from the vertical. The 45.00-m-long cables are attached to the ceiling 1.000 m apart. The first object is suspended, and its position is carefully measured. The second object is suspended, and the two objects attract each other gravitationally. By what distance has the first objet I moved horizontally from its initial position due to the gravitational attraction to the other object? Suggestion: Keep in mind that this distance will be very small and make appropriate approximations.
According to the National Academy of Sciences, the Earths surface temperature has risen about 1F since 1900. There is evidence that this climate change may be due to human activity. The organizers of World Jump Day argue that if the Earth were in a slightly larger orbit, we could avoid global warming and climate change. They propose that we move the Earth into this new orbit by jumping. The idea is to get people in a particular time zone to jump together. The hope is to have 600 million people jump in a 24-hour period. Lets see if it will work. Consider the Earth and its inhabitants to make up the system. a. Estimate the number of people in your time zone. Assume they all decide to jump at the same time; estimate the total mass of the jumpers. b. What is the net external force on the Earthjumpers system? c. Assume the jumpers use high-tech Flybar pogo sticks (Fig. P8.32), which allow them to jump 6 ft. What is the displacement of the Earth as a result of their jump? d. What happens to the Earth when the jumpers land?
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In what frame(s) of reference are Kepler's laws valid? Are Kepler's laws purely descriptive, or do they contain causal information?
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