Which is not part of John Dalton's atomic theory?

All elements are composed of atoms.

Atoms of different elements have different masses.

Atoms are made up of smaller particles.

All atoms of the same element have the same mass.

By what factor should the length of a simple pendulum be changed in order to triple the period of vibration? a. 3 c. 9 b. 6 d. 27

A bird sitting high in a tree is an example of an object with what type of energy

Which of the following statements about Ohm's Law is true? A. To increase the current, decrease the resistance. B. Keeping the same voltage and decreasing resistance decreases the current. C. Ohm's law relates power, current and resistance. D.

A gas-filled weather balloon has a volume of 53.0 l at ground level, where the pressure is 751 mmhg and the temperature is 25.0 °c. after being released, the balloon rises to an altitude where the temperature is - 2.01 °c and the pressure is 0.

If our planet was without its ocean but otherwise the same as it is today, would surface temperatures be more extreme than they are now (that is, higher high temperatures in summer and lower low temperatures in winter), of less extreme, or what?

Since there are no aurora observed on Venus we can conclude that Venus a. lacks atmospheric oxygen b. is too hot for magnetic forces. c. lacks a strong magnetic field. d. lacks strong winds.

A grocery shopper tosses a (n) 9.1 kg bag of rice into a stationary 19.3 kg grocery cart. The bag hits the cart with a horizontal speed of 6.6 m/s toward the front of the cart. What is the final speed of the cart and bag? Answer in units of m/s.

Where do most metamorphic rocks processes take place?

A 13,500 kg railroad freight car travels on a level track at a speed of 4.5 m/s. It collided and coupled with a 25,000 kg second car, initially at rest and with brakes released. What is the speed of the two cars after collision

What type of waves move energy forward, but the source makes up and down