A physics student weighing 500 N stands on a scale in an elevator and records the scale reading over time. The data is
shown in the graph above. At time t = 0, the elevator is at rest
on the ground floor. What is the acceleration of the student
from 10-15 s?

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

The ph is the a. independent variable b. the dependent variable c. control group