8/26 Homework

1. Inertia is the property of things to resist changes in motion. 
i. A baseball accelerates quickly and then gradually slows down; however, when intercepted by a catcher it stops the force of the baseball. The player needs the glove to stop the force without injuring the hand.
ii. The inertia in the whole toilet paper roll is greater than the force that is created when you rip off just one piece. This is why you can rip off just one piece without taking the whole roll.


2. Newtons First Law does apply to the sun and the moon because they are continuing in their states of uniform motion in a straight line, which have forces impressed upon them causing them to deter from a straight line. The force which causes them to deter is the pull of gravity. 


3. Net force is The vector sum of forces that act on an object
i.Two people that are arm wresting and their hands are not moving making the net force=0
ii.In the same match, one competitor is much more resilient and slams down the others hand.


4. The object will be stable, and not moving.


5. The atoms that make up the seat and desk are able to take the force that i exert on them.

8/24 Homework

Short Time: Attoseconds are the most interesting to me because of this fact that I found: "For context, an attosecond is to a second, what a second is to about 31.71 billion years, or twice the age of the universe." (http://en.wikipedia.org/wiki/Attosecond)


Long Time: Petasecond


Small Distance: Zeptometer


Large Distance: Yottameter