The weather we observe takes place in the troposphere, which is where the air . the air in the stratosphere , but this layer is important because molecules block dangerous uv radiation from reaching earth’s .

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Which notation is used to represent an alpha particle? a. b. c. d.

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?