What law of motion is this a runner who reaches the finish line must continue running for some time???

Choose all the answers that apply. our solar system: is in a spiral galaxy no longer includes pluto is made mostly of empty space is in the andromeda galaxy is the only known system that supports life

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.