What would most likely cause the future accelaration of the expansion of the univers

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.)

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?