Galileo was the first scientist to do which of the following? a. estimate the speed of light b. propose the heliocentric theory c. discover radioactivity d. define and measure speed e. invent the reflecting telescope

Acoyote chasing a rabbit is moving 8.00 m/s due east at one moment and 8.80 m/s due south 4.25 s later. let the x axis point due east and the y axis point due north. find the direction of the coyote's average acceleration during that time.

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

In which of the following is positive work done by a person on a suitcase