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Answer:
A. Both spheres land at the same time.
Explanation:
The horizontal motion doesn't affect the vertical motion. Since the two spheres have the same initial vertical velocity and same initial height, they land at the same time.
Answer:
The electric field is
Explanation:
From the question we are told that
The radius of the inner sphere is
The radius of the outer sphere is
The charge on the inner sphere is
The charge on the outer sphere is
The position from the origin is
Generally the electric field is mathematically represented as
The reason for using for the calculation is due to the fact that the position considered is greater than the but less than
Here k is the Coulomb constant with value
So
Solve -5w<span> = -80 for </span>w<span>.</span>
Because plants have to use cyanobacteria during photosynthesis so they could not survive before the cyanobacteria started producing oxygen