Answer:
Use the range formula - R = V^2 sin 2θ / g
A: R = V^2 sin 80 / g = .985 V^2 / g
B: R = V^2 sin 100 / g = .985 V^2 / g
How much negative charge has been removed from a positively charged electroscope if it has a charge of 7.5x10-11C?
If C is Coulombs then, −1 C is equivalent to the charge of approximately 6.242×10^18 electrons.
You already gave the answer: -7.5x10–11C
It is like asking: What colour is my white horse?
Now if you want to know how many electrons have been removed, then multiplying the number of electrons in a coulomb by the coulombs you have, you get 4.6815 x 10^8 electrons. Which is almost the same answer as before.
Answer:
-18
Explanation:
acellus use the formula of magnification and watch your minus sign