An Inventor Develops a Stationary Cycling Device by Which an Individual,while

question 4

Multiple Choice

An inventor develops a stationary cycling device by which an individual,while pedaling,can convert all of the energy expended into heat for warming water.How much mechanical energy is required to increase the temperature of 200 g of water (enough for 1 cup of coffee) from 18°C to 94°C? (1 cal = 4.186 J,the specific heat of water is 4 186 J/kg⋅°C) ​

• A)6.4E+4 J
• B)3.2E+4 J
• C)1.6E+4 J
• D)1.0E+3 J
• E)​1.5E+1 J

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Definitions:

ACh

Acetylcholine, a neurotransmitter involved in many functions including muscle activation and memory.

Reabsorption

The process by which substances are taken back into the bloodstream from bodily fluids or tissues.

Neurotransmitter Molecules

Chemical messengers that transmit signals across synapses from one neuron to another, influencing mental processes and behavior.

Reuptake

A process by which neurotransmitters released into the synaptic cleft are reabsorbed by the presynaptic neuron, helping to terminate the synaptic transmission.