Option (d) is correct.
Distance is the total path length covered by the object.
so, for distance, we add all the path lengths
Here the total distance =7+5+2 =14 km
Answer:
option b
Explanation:
when the two forces act in opposite directions there effective magnitude decreases.
The answer is <span>A. 1/4 as much.
</span>
To calculate this, we will use Coulomb's Law:
F = k*Q1*Q2/r²
<span>where F is repulsive force, k is constant, Q is charge, r is distance between charges.</span>
k = 5.0 × 10⁹ N*m/C²
<span><span> <span> <span> <span> </span></span> </span></span> </span>
Let's take one example where:
Q1 = Q2 = 1.2 × 10⁻⁶ C²
r₁ = 0.5 m
So, F1 = k*Q1*Q2/r₁² = 5.0 × 10⁹ * 1.2 × 10⁻⁶ * 1.2 × 10⁻⁶ /0.5² = 12.96 × 10⁻²/0.25 = 51.84 × 10⁻² = 0.5184 ≈ 0.52
Let's now double r:
r₂ = 2r₁ = 2*0.5 = 1
And let's calculate force:
F2 = k*Q1*Q2/r₂² = 5.0 × 10⁹ * 1.2 × 10⁻⁶ * 1.2 × 10⁻⁶ /1² = 12.96 × 10⁻²/1 = 12.96 × 10⁻² = 0.1296 ≈ 0.13
And now, let's see how much is the second force (F2) differ from the first force (F1):
F2/F1 = 0.13/0.52 = 1/4
Answer:
thank you have a good day
Explanation:
I´m way late to this
