A charge q is at the origin A charge 2q is at x 8.90 m on the x axis a For what finite value of x is the electric field zero 21.4865 Correct Your answer is correct seenKey 21.5 m b For what finite values of x is the electric potential zero Note Assume a reference level of potential V 0 at r Smallest value of x

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

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.)

How do we measure or think of speed in the united states?