sputnik the first artificial satellite to orbit the earth was sputnik i, launched october 4, 1957. the mass of sputnik i was 83.5 kg, and its distances from the center of the earth at apogee and perigee were 7330 km and 6610 km, respectively.

Idon’t quite understand this problem

Why should seat belts not be mandatory quick plz

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.)