If the canyon below is 100.0 m deep, the rocket travels from the edge of
the cliff 226m in the horizontal direction.
<span>When </span>air resistance<span> acts, acceleration during a fall will be less
than g because </span>air resistance affects<span> the motion of the falling objects by slowing it
down. </span>Air resistance<span> depends on two important factors -
the speed of the object and its urface area.
Increasing the surface area<span> of
an object decreases its speed.</span></span>
The correct answer between all
the choices given is the first choice or letter A. I am hoping that this answer
has satisfied your query and it will be able to help you in your endeavor, and
if you would like, feel free to ask another question.
Answer:
17.7 cm^3
Explanation:
depth, h = 120 m
density of water, d = 1000 kg/m^3
V1 = 1.4 cm^3
P1 = P0 + h x d x g
P2 = P0
where, P0 be the atmospheric pressure
Let V2 be the volume of the bubble at the surface of water.
P0 = 1.01 x 10^5 Pa
P1 = 1.01 x 10^5 + 120 x 1000 x 9.8 = 12.77 x 10^5 Pa
Use
P1 x V1 = P2 x V2
12.77 x 10^5 x 1.4 = 1.01 x 10^5 x V2
V2 = 17.7 cm^3
Thus, the volume of bubble at the surface of water is 17.7 cm^3.
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Well he could remove the drawers to make it lighter, which causes less friction