A skateboard is pushed down a ramp at a local skate park with a velocity of 4.0 m/s. It lands 2m away from the ramp. How high is the ramp? How long was the skateboard in the air?

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

Which planet do you think would be easiest for humans to colonize some day?