A puck of mass 0.30 kg is sliding along an essentially frictionless patch of ice at 6.0 m/s. It encounters a rough patch of ice with a coefficient of kinetic
friction of 0.10. How long will it take the puck to stop and how far will it travel?

The midpoints? a, b, and c are marked on the histogram. match them to the indicated scores. which? scores, if? any, would be considered? unusual?

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.

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.