a roller coaster car may be approximated by a block of mass m. the car, which starts from rest, is released at a height h above the ground and slides along a frictionless track. the car encounters a loop of radius r, as shown. assume that the initial height h is great enough so that the car never loses contact with the track.

Which of the following attitudes is not likely to lead to unsafe decisions? a. anxiety b. composure c. overconfidence

Lois and clark own a company that sells wagons. the amount they pay each of their sales employees (in dollars) is given by the expression 12h+30w12h+30w12, h, plus, 30, w where hhh is the number of hours worked and the number of wagons sold. what is the amount paid to an employee who works 666 hours and sells 333 wagons?

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.