You plan to visit a friend who lives 30 miles away. You predict that your average speed for this trip will be 50 miles per hour. How long will your trip take? 0.4 hours (24 centimeters)
0.8 hours (48 centimeters)
0.6 hours (36 minutes)
1.66 hours (~100 minutes)

What is work? how much work is done to move an object 0 meters?

Which of these activities increases the amount of carbon in the atmosphere?

Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.