Which of the following force pairs are an example of newton's 3rd law? select all that apply.
the earth pulls down on the chair./the ground pushes up on the chair.
the bat hits the baseball forward. the baseball hits the bat backwards.
the boy pushes rightward on the box./friction resists the motion leftward on the box.
the bee hits the windshield northward./the windshield hits the bee southward.
the rope pulls the box upward./the earth pulls the box downward.

Phase changes are chemical changes. true or false

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

Who was the first scientist to measure speed as distance over time?