Section 7.2 Review En
1. Martha wakes up at 5:30 a. m. and cats a bowl of corn flakes. It's a nice
day, so she decides to ride her bicycle to work, which is uphill from her
house. It is still dark outside. Martha's bike has a small electric
generator that runs from the front wheel. She ſlips on the generator so
that her headlight comes on when she starts to pedal. She then rides her
bike to work. Draw a diagram that shows the energy transformations
that occur in this situation,
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An airplane travels from st. louis to portland, oregon in 4.33 hours. if the distance traveled is 2,742 kilometers. what is the airplane's average speed? - the airplane returns to st. louis by the same route. because the prevailing winds push the airplane along, the return trip takes only 3.75 hours. what is the average speed for this trip? - the airplane refuels in st. louis and continues on to boston. it travels at an average speed of 610 km/h. if the trip takes 3.75 hours. what is the flight distance between st. louis and boston?