33 points
The number of cells in three separate Petri Dishes was recorded over a
period of 20 days. The data shown in the table best illustrates which part
of the cell theory?
Petri Dish
Day 1
Day 10
Day 20
0
50
150
O
All living things are made up of cells,
O
Cells are the basic unit of living things,
O
Organisms can be single celled or many celled,
O
All cells come from preexisting cells.

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?