In attempting to jump up a waterfall, a salmon leaves the water ...

[fbq8i]

In attempting to jump up a waterfall, a salmon leaves the water 2.0 m from the base of the waterfall. With what minimum speed must it leave the water in order just to make it up a waterfall 1.6 m high?
 
  What will be an ideal response?

Question 2

Why might it be difficult for Earth-like planets to form around Sun-like stars in the inner parts of the disk of our galaxy?
 
  A) any stars would be sucked into the central supermassive black hole
  B) there would be insufficient amounts of heavy elements
  C) the stars would be packed together too densely for planets to be stable
  D) there would be too much harmful radiation

[jessofishing]

Answer to Question 1

8.96 m/s

Answer to Question 2

D

[fbq8i]

Thanks

[jessofishing]

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