As its charge, proton -a positive charged molecule at the center of an atom- is the opposite of the electron -the particle which is orbiting the center of an atom.
They can be described as small in quantity and very dangerously radioactive.
The answer is c) electromagnetic sawed in which the vibrations are perpendicular to the motion of the sound
Answer:
If theta is equal to 90, then both projectiles strike at the same distance from the projection point and projectiles are in air for the same time interval.
Explanation: