The gecko is sticking upside down to a smooth ceiling.The remarkable adhesion might be due to staticelectricity. Gecko feet are covered with microscopichairs. When these hairs rub against a surface,charges separate, with the hair developing a positivecharge and negative charge forming below thesurface. There is an attractive force between theseparated charges. This is an effective means ofadhering to a surface, but it comes at a cost: Twoplanes of charge are like two charged plates of acapacitor, which takes energy to charge. Doubling theamount of charge on each surface increases theattractive force, but also increases the energy requiredto separate the charge.Part ABy what factor does this energy increase?(UElec){(UElec);ΕΧΕΙ ΑΣΦSubmitRequest AnswerProvide Feedback?

Step 1: Given data: Two charged plates of a capacitor.Required to calculate by what factor does the…

Answered: The gecko is sticking upside down to a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Similar questions

Two point charges are located 2.5 mm apart. The force between the particles has a negative magnitude of 4.0N. If the two point charges are moved 5.0 mm apart and everything remains the same, the new face between the charges will have a magnitude of? I know the answer is 1.0 N but how?
A particle witha negative charge of 12 nC is at the origin, and a particle with a negative charge of magnitude Q is at x =50.0 cm. A third particle with a positive charge is in equilibrium at x 20.0 cm. The magnitude of Q (in nC) is: O 27 O 18 O45 O36 O 54
A small plastic ball of mass 8.19 × 10³ kg and charge +0.116 μC is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0° with respect to the vertical. The area of each plate is 0.01280 m². What is the magnitude of the charge on each plate? 30.0⁰ IN + ++ + ▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Two identical balloons are inflated and charged in the same manner. They are tied by threads and hung from the same pivot point on the ceiling. The balloons hang down, with the threads making an angle of 14° with each other and the balloons being separated by a distance of 58 cm (center-to-center). Each balloon has a charge of - 3.5x10-7 C. Draw a free-body diagram for the balloons and consider them to act as point objects.
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.0895 N when their center-to-center separation is 66.1 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.0282 N. Of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge on one of them and (b) the positive charge on the other? (Assume the negative charge has smaller magnitude.) (a) Number (b) Number Units Units
Two identical balloons are inflated and charged in the same manner. They are tied by threads and hung from the same pivot point on the ceiling. The balloons hang down, with the threads making an angle of 13.9° with each other and the balloons being separated by a distance of 71.9 cm (center-to-center). Each balloon has a charge of -3.59x10-7 C. Draw a free-body diagram for the balloons and consider them to act as point objects. a. Calculate the force of electrical repulsion between the balloons. Force of Repulsion x-Component of Tension b. What is the horizontal component of force in the thread that supports either one of the balloons? y-Component of Tension d. What is the mass of either one of the balloons? x10^ Balloon Mass c. What is the vertical component of force in the thread that supports either one of the balloons? x10^ x10^ N x10^ kg N N I I
Red blood cells often become charged and can be treated as point charges. Healthy red blood cells are negatively charged, but unhealthy cells (due to the presence of a bacteria, for example) can become positively charged. In the figure, three red blood cells are oriented such that they are located on the corners of an equilateral triangle. The red blood cell charges are A = 1.90 pC, B = 6.50 pC, and C = -4.80 pC. Given these charges, what would the magnitude and direction of the electric field be at cell A? (1 pC = 1 x 10-12 c.) Magnitude- Direction-
three-point charges have equal magnitudes, two being positive and one negative. these charges are fixed to the corners of an equilateral triangle as the drawing shows. the magnitude of each of the charges is 5.5 Uc and the length of the sides of the triangles are 2.5 cm. calculate the magnitude of the net force that each charge experiences. for this question you should have three answers in other words. What is FA, Fb, Fc?
Let's say two unknown charges are given to you. You do not know their individual charges, but you know that their total charge is 8.00µC. You made a test in the laboratory and found that these two charges push each other away with a force of 0.150 N when separated by 0.500 m. What is the charge of the "higher charge" in units of µC ?
Consider the following situation. Particles A and B have equal charge. They are separated by a distance d and they each experience a force of F from the other. What force will they both experience if the distance between them is increased to 2d?
You hold a ruler that has a charge on its tip 3.80 cm above a small piece of tissue paper to see if it can be picked up. The ruler has –10.0 µC of charge. The tissue paper has 5.00 g of mass. What is the minimum charge required to pick up the tissue paper?
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.118 N when their center-to-center separation is 61.5 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.0444 N. Of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge on one of them and (b) the positive charge on the other? (Assume the negative charge has smaller magnitude.) (a) Number (b) Number i 1.4E-6 -1.2466E-6 eTextbook and Media Hint Save for Later Units Units C C Attempts: unlimited Submit Answer W

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