Which one of the following is not part of john daltons atomic theory?

a) all elements are composed of atoms

b) all atoms of the same element have the same mass

c) atoms contain subatomic particles

d) a compound contains atoms of more than one element

A car moving at 50 miles per hour speeds up steadily to 70 miles per hour over a period of 30 minutes. How far did it travel during the 30-minute period of acceleration?

I have to match 1-9 with the words listed below 1. made of two protons and two neutrons 2. similar to an electron; positive charge 3. orbits nucleus; negative charge 4. bundle of energy; zero charge 5. found in nucleus; positive charge 6.

A person is pushing a fully loaded 21.60 kg wheelbarrow at constant velocity along a plank that makes an angle?=20.0∘ with the horizontal. The load is distributed such that the center of mass of the wheelbarrow is exactly halfway along its length L.

F you are skateboarding and have to make a sharp turn to avoid a branch, in which direction are you accelerating?

An experiment in your science class lists the materials needed for the lab. It is your job, as a lab partner, to measure out 25 mL of distilled water and 2.5 grams of magnesium.

What did Issac Newton think he could describe?

Which two states share the property of changing shape in different containers? A. Liquids and gases B. Gases and solids C. Solids and liquids D. Solids and plasmas

Which type of soil is the most permeable? A. sand B. silt C. loam D. clay

If your mass is 20kg, and you stand on the scale (witch is your force), and the acceleration due to gravity is10m/s^2, what does the scale says your weight is?

Which statement best describes the movement of particles when a wave travels through a medium? The particles are