Jane is feeling depressed after receiving a failing grade on a test. which statement would improve her mood and attitude? a. you really need to study more. b. i’m sure you’ll do better next time. c. i can’t believe you missed that many questions. d. you should have asked for my studying.

b. I’m sure you’ll do better next time.

Explanation:

You can help her feel better by commenting that she will do better next time and that she can prepare better for next time, if you tell her that she needs to study more, or that she should´ve asked for help you can make her feel bad that she could´ve done something better, and you do not know for sure what happened, so being supportive and optimistic would be best if you tell her  b. I’m sure you’ll do better next time.

ek = (m.v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) v2/2

ek = (200 + 250) 2,32/2 = 450*5,29/2 = 1190,25 j

by: nicholas dooley