1. how do machines make work easier?
2. how do you calculate work (what is the formula for work? )

3. what is the formula for mechanical advantage?

4. how does friction impact work?
5. what is the relationship between kinetic and potential energy? 6. how do you calculate kinetic energy (what is the formula)
7. a 700-kg vehicle is traveling at a speed of 6 m/s. how much kinetic energy does it have?
8. two rocks of different masses are rolling down a hill at the same speed. which rock (small one or big one) would have more kinetic energy?

Susan arnold is a 62 year old woman who has developed rheumatoid arthritis and is beginning to develop significant joint damage

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

What does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms