5. In a typical car, a seat belt can withstand a force of about 15,000 N. What is the maximum speed you can travel that allows the seat belt to stop your motion during a
collision? (Hint: convert your mass in kg)

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.