Please complete 5-15. If you can\'t see the image, here is the link: http://i.im

Question

Please complete 5-15.

If you can't see the image, here is the link:

http://i.imgur.com/Vh3hLTV.png

If the separation between two masses is doubled, does the gravitational force between them increase or decrease? By what factor? Two gravitational forces act on a given object. How do you determine the total gravitational force acting on the object? In what direction does the force of gravity act on a pair of masses? Describe how factors such as mass and distance affect the force of gravity throughout the universe. Suppose someone makes the following comment: "Astronauts are weightless in orbit because they are beyond Earth's gravitational pull." How would you respond to this assertion? The three equally spaced objects in Figure 9.5 have the indicated masses. Is the total gravitational force acting on object B toward the left, toward the right, or zero? Explain. Referring to Figure 9.5, rank the objects in order of increasing magnitude of the total gravitational force. Indicate ties where appropriate. You place a 0.18-kg can of soup and a 0.34-kg jar of pickles on the kitchen counter, separated by a distance of 042 m. What is the magnitude of the force of gravity that the can of soup exerts on the jar of pickles and the jar exerts on the can? What is the magnitude of the force of gravity between two 1.6-kg flower pots if their separation is 1.0 m or 3.0 m? The gravitational force between two volleyball players is 3.3 Times 0^-7 N. If the masses of the players are 66 kg and 72 kg, what is their separation? A batter checks her swing as a 0.15-kg baseball crosses home plate outside the strike zone. If the separation between the batter and the ball is 0.77 m and the gravitational force exerted on the batter by the ball is 1.1 Times 10^-9 N, what is the mass of the batter?

Explanation / Answer

mass of batter,M=?
mass of ball,m=0.15 kg
distance between ball and batter,r=0.77m

Gravitational force,F=GmM/r2=1.1*10-9N

G=6.67408 × 10-11 m3 kg-1 s-2

M=1.1*10-9*0.772/6.67408*10-11*0.15=65.18 kg

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