A1000-n boulder on the right end of a seesaw is raised when the left end of the seesaw is pushed downward. if both ends of the seesaw are equal distances from the fulcrum, then to raise the boulder, the left end should be pushed downward with a minimum force of
a. 500 n
b. 750 n.
c. more than 1000 n.
d. 1000 n.

What do you think car designers do if the damage caused by a crash test is too severe?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.