A 20. 0 kg mass moving at a velocity of + 3. 0 m/s is stopped by a constant force of 15. 0 n. How many seconds must the force act on the mass to stop it?.

To avoid becoming distracted by an urgent situation while driving, you must: a. deal with it while you continue driving b. think about while you're stopped at intersections c. pull over to deal with it

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.

Land is to arable ; river is a, navigable b, shallow c, presumsor d, water