B1: The coefficient of static friction between the road and a car tire is 0.7. The coefficient of kinetic friction is 0.55. The mass of a car is 1500 kg.
a. Calculate the maximum static friction force possible between the car’s tires and the road.
b. Calculate the kinetic friction force between the car’s tires and the road.
When you apply the brakes, the friction between the tires and the road is the net force (ignoring air resistance and other
complicating factors).
c. Calculate the car’s acceleration while braking if it doesn’t skid (i. e. static friction).
d. Calculate the car’s acceleration while braking if it does skid (i. e. kinetic friction).

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.