Aroller coaster track is 3,000 meters long. it takes 100 seconds to travel once around the roller coaster. is the velocity constant throughout the trip? explain.

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

Gunpowder residue is most likely to show up where on a shooters hands

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation