What force must act on a 150 kg mass to give it an acceleration of 30 m/s squared? F=ma 5 N
120 N
450 N

Please please, I beg of you, choose the correct answer. Sorry

Stage in which a star’s outer layers have started to cool and grow outward?

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?

Which of the following best describes technology a. something created for only scientists to use b.the method of thinking that scientists use. c.the application of engineering to create useful products. c. a scientific idea