V^2 =U^2 +2AS
V^2 = 25 ^2 + 2x9.5x10
V^2 = 625 + 1900 = 2525
V = 50.25
Answer: c)• 2/3
Explanation:
Lets say q1 and q2 are two charges with r distance far apart.
So electrostatic force
F = (k q1 q2) / r²
as k = Coulomb's constant
Now
q1' = 2q1
q2' = q2/3
Therefore the new electrostatic force
F' = (k q'1 q'2) / r²
F' = (k 2q1 q2) / 3r²
F' = 2/3 [(k q1 q2) / r²]
so F' = 2/3F
New electrostatic force is 2/3F
Answer:
Spot B & Spot C
Explanation:
They're closer to the equator and get more direct solar radiation, making them more likely to be where a warm air mass would form.
Answer:
Acceleration occurs when an object changes its VELOCITY or DIRECTION or both
Explanation:
In radio communication, "frequency modulation" refers to encoding a wave with information by adjusting how many waves are produced per second.<em> (b) </em>That's the "frequency" of the radio carrier signal.