Practice problems
1. A cannon on a pirate ship was fired at an angle of 30 °, and the cannon ball came out of
the cannon at 40 m/s. Assuming we can neglect air resistance and that g=9.8m/s“,
calculate:
angle = 30
(Make table and write the given values)

Make table and write the given values

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.

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?