PLEASE HELP! Which event is an example of vaporization? A. Fog forms in a valley.
B. People see their breath on a cold winter day.
C. Dew forms on the leaves of a tree.
D. A spilled drop of rubbing alcohol.

How does an observation about an object differ from an inference about that object

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?

Madison lives near the ocean. she’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable: