Which statement describes the charge of an
electron and the charge of a proton?
(1) an electron and a proton both have a charge of 1.
(2) an electron and a proton both have a charge of 1.
(3) an electron has a charge of 1, and a proton has a charge of 1.
(4) an electron has a charge of 1, and a proton has a charge of 1.

What material does not melt at any temperature

In pqr m< p=60 m< q= 30 and m

Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line