A nearsighted student with a far point of 5.90 m wears contacts that allow him to see distant objects clearly. When the student views a 2.20 m high tree that is 17.4 m away though his contacts, determine the following. (a) the image distance for the tree
m
(b) the image size, that is the height of the tree
m

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great. d) about 10 times as great.

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero