Asmall cart is rolling freely on an inclined ramp with a constant acceleration of .50 m/s2 in the x-direction. at time t=0, the cart has a velocity of 2.0 m/s in the +x-direction. if the cart never leaves the ramp, describe the motion of the cart at time t> 5 s.

Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?

Explain why you think this diagram shows what happened to the carbon in the biodome.

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.