How many electrons (added or removed) are necessary to produce a charge of -4mc?

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form