Тема: I have a super hard physcis homework question, who can help me?

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a. 4 seconds. (where acceleration due to gravity is 9.8m/s^2) b. 24 meters. (6m/s times 4 seconds) c. 6m/s (unchanged as there is no horizontal acceleration) d. 6.26 m/s (final velocity squared = vert. distance x time x acceleration) e. 8.67 m/s f. b, c, e

a] Use d =.5 gt^2 b] 280 m/s x 30 s = c] Since we re to neglect air resistance, the engine retains all of its horizontal velocity. If the plane does not turn, the engine will hit the gr4ound right underneath the plane.

The Red Sea is an example of = C) a rift system creating new oceanic crust The Hawaiian island chain etc. = B) False http://www.wou.edu/las/physci/taylor/gs104/lab4key.pdf http://www.cliffsnotes.com/study_guide/Types-of-Plate-Boundaries.topicArticleId-9605,articleId-9576.html http://www.oberlin.edu/Geopage/projects/204projects/lee/EastAfricanRiftValley.html

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Even after my mom had a long day, she still asked me if I needed help with my homework at 10:00 last night.

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Science A body of mass 10kg is moving with velocity 10m/sec.The work done to stop the body is : A) 500J B)-500J C)1000J D)-1000J How to calculate the answer?