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?

What mathematical formula correctly expresses the relationship between force, mass and acceleration? A. m = F + a B. F = m / a C. a = mF D. F = ma

An aerobatic airplane pilot experiences weightlessness as she passes over the top of a loop-the-loop maneuver. the acceleration of gravity is 9.8 m/s 2. if her speed is 430 m/s at this time, find the radius of the loop. answer in units of km.

If air has dry bulb temperature of 2 and the wet bulb temperature of - 2. what is the relative humidity

What can be dissolved in a salad

What minimum constant acceleration does the aircraft require if it is to be airborne after a takeoff run of 265 m?

Energy transformations in a bouncy house

High voltage power is often carried in wire bundles made up of individual strands. In your initial post to the discussion, discuss the forces on the strands of wire due to the current flowing through them.

The climate of an area is based on A) Rivers and lakes B) natural resources. C) mountain and valleys. D) Precipitation and temperture

California has been spending money to establish desalination plants. The state is preparing for

What force is needed to give a 0.25-kg arrow an acceleration of 196 m/s2? A. 0.25 N B. 49 N C. 196 N D. 748 N