A car travels 60 km in the first 2 hours and 40 km in the next 1 hour. What is the car’s average speed?

Find the volume of the ellipsoid x^2+y^2+5z^2=36.

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?