A car is traveling north at 85 km/hr. If it takes 3.5 hours to get to the border, determine the distance traveled.

Bernie drove home from a vacation in 1.5 hours. he traveled a total distance of 60 miles. what was his average speed in miles per hour? a. 60 mph b. 90 mph c. 40 mph d. 55mph

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

Whithin which type of system is neither the total mass nor the total energy conserved ? a. open b. connected c. isolated d. closed