A pelican flying along a horizontal path drops a fish from a height of 4.7 m. The fish travels
9.5 m horizontally before it hits the water
below.
What was the pelican’s initial speed? The
acceleration of gravity is 9.81 m/s
2
.
Answer in units of m/s.

1 a

2 b

3 b

4 d

5 d

6 d

explanation:

an energy transformation flow diagram is shown

where is it ?

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

total distance/total time

(85 + 82)/(5+3)

167/8

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