Answer:
Millikan's oil drop experiment proved that electric charge is quantized.
At the time, there was still great debate whether electric charge was continuous or not.
Millikan believed that there was a smallest unit of charge, and he set out to prove it.
This was the big result of the oil drop experiment.
That he could also determine the charge of the electron was a secondary benefit.
This was probably one of the most significant experiments ever carried out.
Explanation:
Concave mirror...as it focus the light at a given point..... concave mirror is converging !!!
Answer:
80 km/h
Explanation:
The answer is 160/2=80, the answer is 80km/h.
Explanation:
The acceleration due to gravity g is defined as
and solving for R, we find that
We need the mass M of the planet first and we can do that by noting that the centripetal acceleration experienced by the satellite is equal to the gravitational force or
The orbital velocity <em>v</em> is the velocity of the satellite around the planet defined as
where <em>r</em><em> </em>is the radius of the satellite's orbit in meters and <em>T</em> is the period or the time it takes for the satellite to circle the planet in seconds. We can then rewrite Eqn(2) as
Solving for <em>M</em>, we get
Putting this expression back into Eqn(1), we get
Answer:
I believe the answer is A and D.
I am unsure of C.