5. Bill is swimming and drops his swim goggles in the pool. He looks from above the top of the water to see where they fell and
1 answer:
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Answer:
<h2>254.56 m</h2>Explanation:
A object dropped from a plane from a certain height will follow a parabolic trajectory because it has a horizontal velocity equal to plane's velocity.
So, if supplies are to be dropped from a plane from a height of 160 m, let us calculate the time it takes to reach the ground.
So, in this time, the supply moves a horizontal distance of .
∴ The supply must be dropped when the plane is 255 m away.
Answer:
r₂/r₁ = 1.82
Explanation:
The electric field due to a point charge, has the following expression:
For a distance r₁, the magnitude of the electric field is 395 N/C, so we can solve for r₁², as follows:
r₁² = (1)
For a distance r2, the magnitude of the electric field is 119 N/C, so we can solve for r₂², as follows:
r₂² =
We can find the quotient r₂/r₁, from (1) and (2):
r₂/r₁ = = 1.82