Which two changes would decrease the electric force between two charged particles?.

How often do neap tides occur? a. about once a month b. about twice a month c. about once a year d. about twice a year

The volume of a cylinder is 72 tt cm3. if the radius is 3 cm, what is the height of the cylinder?

How do refracting telescopes magnify a far away image? a. by directing light beams to meet at a focal point b. by absorbing light beams’ wavelengths c. by forcing light beams to change direction d. by measuring light beams’ velocity