Two object accumulated a charge of 4.5 μc and another a charge of 2. 8 μc. these two objects are separated by a distance of 2.5 cm. calculate the magnitude of the electric force between these two objects.

181 .24 n

4.53 n

1.81 x 1014 n

2.02 x 10-8 n

Modify the equation fδt=δ (mv) to find the force of friction.

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.

Energy can be transformed from one form to another. the diagram shows one such process. which energy transformation is represented in the diagram? nuclear to thermal and radiant nuclear to electrical and chemical chemical to nuclear and radiant chemical to electrical and nuclear