Afirst class lever is used to lift a 500 pound load. if the input arm is 6 feet long, what is the minimum length of output arm that would allow the load to be lifted using only 125 pounds of input force

Aballet student who learns with the of his instructor is demonstrating learning.

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v