6. A quarterback can throw a receiver a high, lazy "lob" pass or a low, quick "bullet" pass. These passes are indicated by curves 1 and 2, respectively, in the figure below. (a) The
lob pass is thrown with an initial speed of 21.5m/s and its time of flight is 3.97s. What is
the launch angle? (b) The bullet pass is thrown with a launch angle of 25.0°. What is the
initial speed of this pass? (c) What is the time of flight of the bullet pass?

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

Rohit is trying to tune an instrument