Suppose you're studying levels of job stress and measures of job efficiency in a nursing home. Which one of the following statements best represents a data comparison that demonstrates a positive correlation?
O A. As job efficiency decreases, stress levels increase.
O B. As job efficiency increases, stress levels decline.
O C. As stress levels increase, job efficiency declines.
O D. As stress levels increase, job efficiency increases.

The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?

How is zig zagging a form of acceleration?

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.