-- all electrons are identical
-- electrons have a negative electrical charge
-- the size of the charge is equal to the positive charge on a proton
-- but it takes about 1,840 electrons to make the mass of one proton
Answer:
20meters per second
Explanation:
2000meters/50seconds= 20m/s
The answer would be : <span>hydrologists.
Hope this helps !
Photon</span>
Answer:
Q = 1.52 X 10⁻⁷ C.
Explanation:
String is inclined at 10 degree with the vertical so the vertical component of T will balance the weight and the horizontal component will balance the force of repulsion F.
T Cos 10 = mg
T Sin 10 = F
Tan 10 = F / mg
F = mg Tan 10
= 10⁻³ x 9.8 x .176
= 1.728 x 10⁻³ .
Force of repulsion F = K Q² / R²
Distance between two charges = 2 x 1 x sin 10
= .347 m
1.728 X 10⁻³ =
[/tex]
Q² = 2.31 X 10⁻¹⁴
Q = 1.52 X 10⁻⁷ C.