If you traveled through space and landed on an unknown planet where gravity is 15 times as strong as the gravity on earth, how much would you weigh on this new planet if you weighed 100 pounds on earth? (3 points)

First you would divide your weight on Earth by 9.8m/s which is the gravitational constant. This would give you your mass which would be 10.2 kg. To find the gravity of the unknown planet you would multiply 9.8m/s by 15 which would be 147m/s. Since weight is defined as mass times gravity you would substitute the mass you found earlier and multiply it by the new gravity. This would give you 10.2kg times 147 m/s which equals 1,499.4 lbs or 1,500 lbs if rounding.

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

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