The period of a simple pendulum is t=2π √(l/g) with l = length of the pendulum and g = gravity of earth. a. derive the scaling law for the pendulum. b. how much would the period of the pendulum change when you decrease the characteristic dimension by a factor of 10?

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.