Two Point Charges of +1

question 36

Multiple Choice

Two point charges of +1.0 μC and -2.0 μC are located 0.50 m apart.What is the minimum amount of work needed to move the charges apart to double the distance between them?

• A) -36 mJ
• B) +18 mJ
• C) 0 mJ
• D) +36 mJ
• E) -18 mJ

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Definitions:

Synaptic Cleft

The small gap between neurons at a synapse, across which neurotransmitters are released to transmit neuronal signals.

ACh

Acetylcholine (ACh) is a neurotransmitter involved in muscle activation, memory, and learning by transmitting signals between nerve cells.

Neurotransmitters

Neurotransmitters are chemical messengers that neurons use to communicate with each other or with muscles across synapses.

Postsynaptic Cell

The neuron or cell that receives a signal (neurotransmitter) from another neuron at a synapse.