potential c

Part C Compute the final energy of the system. Express your answer in joules. ΑΣφ ? U = J Part D Compute the decrease in energy when the capacitors are connected. Express your answer in joules. ? AU = J

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To measure signal propagation in a nerve in the arm, the nerve is triggered near the armpit. The peak of the action potential is measured at the elbow and then, 4.0 ms later, 24 cm away from the elbow at the wrist.a. What is the speed of propagation along this nerve?b. A determination of the speed made by measuring the time between the application of a stimulus at the armpit and the peak of an action potential at the elbow or the wrist would be inaccurate. Explain the problem with this approach, and why the noted technique is preferable.

6. The giant axon of a squid is 0.5 mm in diameter, 10 cm long, and not myelinated. Unmycli- nated cell membranes behave as capacitors with 1 μF of capacitance per square centimeter of membrane area. When the axon is charged to the -70 mV resting potential, what is the energy stored in this capacitance?

To recharge a 11 V battery, a battery charger must move 3.8  105 C of charge from the negative terminal to the positive terminal. How much work is done by the charger? Express your answer in joules. J

This homework problem is giving me some issues, help would be greatly appreciated! Thanks!

How much work does the battery do in moving 5 μ C from its low terminal to its high terminal?  Answer in μJ.   Diagram is attached.

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