A small letter written after a chemical symbol that shows how many atoms of that substance are present is called a: Group of answer choices

Coefficient

Compound

Catalyst

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.