Find the net work done by friction on the body of a snake slithering in a complete circle of 1.04 m radius. the coefficient of friction between the ground and the snake is 0.25, and the snake's weight is 78.0 n.

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.)