A bus leaves Davis at noon on its way to Merced. It travels at 60 km/hr for 30 minutes, then 100 km/hr for the next hour, and 30 km/hr for the final 20 minutes. After a 10 minute break in Merced, it travels back to Davis at a constant speed. It finally reaches Davis at 4:00 pm. How much was its return speed?

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?

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.)