Answer:
B. Chemical to Electrical to Radiant
Explanation:
Answer:
Give them assignment on the pandemic.
Explanation:
If you wish, each student can talk about some other aspect of the pandemic that seems important and interesting then you have to give them the assignment of presentation and give reward on them. The students will definitely make the presentation on other aspects of the pandemic and when they present it in the class it enhance the knowledge of other students as well.
Layer F was formed earlier than Layer A
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
