Important inventions of the industrial revolution

How does federalism limit the power of government in the united states? a. it requires the national government to share power with state governments. b. it ensures that one state cannot make laws that affect all the other states. c. it requires the three branches of the national government to share powers. d. it allows the judicial branch to rule on laws that affect the entire country.

If a swimmer is traveling at a constant speed of 0.85 m/s,how long would it take to swim the length of a 50m olympic sized pool?

Which of these best describes why president franklin d. roosevelt created the new deal?