A satellite orbits the earth at a distance of 10,000 miles from the earth's center. At this distance the force of gravity on the satellite is 90 lbs. (a) What would the force on the satellite be if the distance were 5,000 miles instead? (b) At what distance from the earth's center would the force on the same satellite be 10 lbs?
Question 2
Which of these is NOT true about the standard model of elementary particles currently accepted by most physicists?
a. It seems to explain every relevant experiment that can be done.
b. It combines two of the four basic forces into an electroweak interaction.
c. It combines the electroweak interaction with the color interaction.
d. It connects the color theory to the strong force.
e. It calls for mathematical calculations that are currently impossible.
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