Which of these statements is false?
question 1 options:
1.) you should always feel pain when stretching.
2.) you should stretch all muscles groups each day.
3.) you should stretch before all physical activity.
4.) you should stretch before and after workouts.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)