Two of Dalton's theories were disproven:

1. All atoms of a given element are the same.

2. Atoms can't be divided into smaller pieces.

Q: Who disproved theory 1?

A:?

Q: Who disproved theory 2?

A: J. J. Thompson?

Two pots are filled with boiling water. The pots are exactly the same size, but one pot is white and the other is black. Which pots cools faster? a. The black pot. b. The white pot. c. Neither-they both cool at the same rate.

Which number is 0.0069 expressed in scientific notation? 6.9 * 104 6.9 * 10-6 6.9 * 10-4 6.9 * 10-3

How to find force if one object when given mass acceleration and pulling force if another object

What happens when a ray of light is directed at a mirror, a glass block and a prism?

What are the physics terms behind watching TV?

A 26-g steel-jacketed bullet is fired with a velocity of 630 m/s toward a steel plate and ricochets along path CD with a velocity 500 m/s.

A small boat is carrying four people across a river. Without any paddling, the boat moves downstream at a steady speed of 5 m/s. If the average weight of the four people is 60 kg, then what is the speed of the boat after one person gets?

Does temperature affect the dissolving phase?

In a clear, coherent, paragraph-length answer, explain why the speed of the apple half way between the release and the maximum height is not half the initial speed.

In pea plants Round (R) is a dominant trait and wrinkled nose (r) is a recessive trait. Which combination would result in wrinkled seeds? 1. RR 2. Rr 3. rr 4. ww