Please Help Me !! 1. To exercise for an hour, it takes 500 Joules of work. How much power will be needed?
2.How much work will be done on building a car if you use 20 watts of power for 60 minutes?

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.