Which two stimuli did John B. Watson associate in his infamous “Little Albert” experiment? A. a white lab rat and the boy’s moth
1 answer:
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Answer:
The stronger person holds it closer to them.
Explanation:
if the stronger person were to hold the ladder closer to them, they would be holding more of the weight thus making the weaker person have less weight. this is because of the center of gravity being closer to the stronger person.
Answer: option A. Reduce the distance by a factor of 4.
Explanation:
1) The electric potential energy, U is given by the formula
<h2>
Where U is the electric potential energy, Q and q are the magnitude of the charges, and r is the distance between the charges.
2) That means that the electric potential energy is directly proportional to the product of the charges and inversely proportional to the distance between the two charges.
3) Therefore, withoud modifying the charges, when you reduce the distance, r, by a factor, the electric potential energy will be increased by the same factor.
Mathematically you can prove that in this way:
<h2>U₁ = KQq / r₁</h2>
<h2>U₂ = KQq / r₂</h2>
<h2>U₂ = 4 U₁ ⇒ </h2><h2 /><h2>KQq / r₂ = 4 KQq / r₁ ⇒ 1 / r₂ = 4 / r₁ ⇒ r₂ = r₁ / 4.</h2>
Which is that the distance is reduced by a factor of 4.