1. A welder draws 70 A of current and is run for 2 hours. What is the charge
that has passed through the welder?

504,000 C

Explanation:

An Ampere is a Coulomb per second.

1 A = 1 C/s

1 hour is 3600 seconds.

1 hr = 3600 s

(70 C/s) (7200 s) = 504,000 C

when earth is in rotational motion around the sun,it displaces from its place.

when a ball is placed on an inclined surface it does both the rotational and circular motion.

explanation:

the rearrangement of particles in a physical change. hope this