The Greek philosopher Democritus coined what word for a tiny piece of matter that cannot be divided?

A) Element

B) Atom

C) Electron

D) Molecule

When studying whiplash resulting from rear end collisions, the rotation of the head is of primary interest.

Evaluate why acids are able to conduct electricity. Then describe which types of acids are better conductors and why.

Liz puts a 1 kg weight and a 10 kg on identical sleds. She then applies a 10N force to each sled. Describe why the smaller weight has a larger acceleration. A) There is same amount force is applied to both sleds.

What do we mean by gravitational time dilation?

You are pushing a crate horizontally with 100 N across a 10 m factory floor. If the force of friction on the crate is a steady 70 N, how much kinetic energy is gained by the crate

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.

What usually causes high concentration of minerals to form