In which of the following cases does a car have a negative velocity and a positive acceleration? A car that is traveling in the: a. +x direction decreasing in speed.
b. +x direction increasing in speed.
c. −x direction decreasing in speed.
d. −x direction increasing in speed.
e. −x direction at a constant 20 m/s.

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

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance

Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)