12
exploring creation with physics
make sure you understand these concepts by solving the following "on your ow
your own" problem.
on your own
2.00 x 10 meters down the stree
1.2 a mail carrier drives down a street delivering mail. she travels 3.00 x 102 met
in 332 seconds. she then turns around and heads back up the street, but because of the way
mailboxes are placed, she only needs to travel 208 meters in that direction, and that trin tak
2.30 x 10- seconds. what was her velocity as she traveled down the street? what was it as she
traveled up the street? what was her velocity for the entire trip?
now of course, equation (1.1) has more applications than the ones you have seen so far. stub
the next example and solve the "on your own" problem that follows in order to see how other types
of problems can be solved using this equation.

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.