What is the force between two balloons with a negative charge of 1.6 ✕ 10 to power of -10 C if the balloons are 7.6 cm apart?

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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.

This is the number of complete movements of a wave per second.