I believe the answer would be 4.5. because it wouldnt be c or d. and 2 seems too small.
Answer:
3.3 m
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.81 m/s²
The fish needs to see the pelican before 0.2 seconds in order to escape so the time pelican has is 1.81-0.2=1.61 seconds
In that time the pelican would have traveled
So, the pelican would be 16-12.71 = 3.3 m above the water.
Answer:
whichever teacher gave you this question is a legend
Explanation:
To be honest, the picture is so far above that I can't see it at all.
But reading the information in the question's statement, I'd say
the blank should be filled in so that it says:
<span> The chemical energy in the battery is used to light up the light bulb
on the other end. Chemical energy in the battery is transformed into
electrical energy which runs through the circuit wire. (A)</span>
Answer:
9.8 Joules (rounded to 2 significant figures)
Explanation:
Work done (J)= Force(N) x distance changed (m)
- Force= 9.80665 x 0.5kg
- Force= 4.90332 Newtons
- Distance changed= 5-3
- distance changed= 2m/s
--> work done= 4.90332 x 2
work done= 9.8 Joules
