What force is needed to give a 0. 25-kg arrow an acceleration of 196 m/s2? Question 4 options: 0. 25N 49N 196N 748N.

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a. m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

When an object is heated it contracts. a. true b. false

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change