Rub a plastic pen on a piece of cloth. bring it near to small pieces of paper put on table. what will you observe? use the knowledge on electrostatics to explain the phenomen b. now, instead of small pieces of paper, you have aluminum filings (small pieces aluminum) on the table. whal happens to then if you bring the rubbed plastic pen nea them? explain why

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.)