The chart shows the movement of a ball after several seconds. column a is on the x-axis, and column b is on the y-axis. which titles should replace a and b? column a should be "time," and column b should be "position." column a should be "position," and column b should be "time." column a should be "velocity," and column b should be "speed." column a should be "speed," and column b should be "velocity."

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

answer; /// i believe that the correct answer is (50%);

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds