Calculate the force of gravity on a 1-kilogram box located at a point 1.3x10^7 meters from the center of the earth. (The value of G is 6.673x10^-11 Newton meter^2/kilogram^2. The mass of earth is 5.98x10^24 kilograms)

The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.

Consider a production line with five stations. station 1 can produce a unit in 9 minutes. station 2 can produce a unit in 10 minutes. station 3 has two identical machines, each of which can process a unit in 12 minutes (each unit only needs to be processed on one of the two machines. station 4 can produce a unit in 5 minutes. station 5 can produce a unit in 8 minutes. which station is the bottleneck station?

What type of force holds atoms together in a crystal?