A 3700-pF air-gap capacitor is connected to a 30-V battery. Part A If a piece of mica (K = 7) is placed between the plates, how much charge will flow from the battery? Express your answer using one significant figure and include the appropriate units.
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- An alpha particle with a kinetic energy of 7.00 MeV makes a head-on collision with a gold nucleus at rest. Part A What is the distance of closest approach of the two particles? (Assume that the gold nucleus remains stationary and that it may be treated as a point charge. The atomic number of gold is 79, and an alpha particle is a helium nucleus consisting of two protons and two neutrons.) Express your answer in meters. d = Submit VE ΑΣΦ Provide Feedback Request Answer ? mhow do i answer the attached physics question?B
- Part A Capacitors C, = 10µF and C2 = 20µF are each charged to 22 V, then disconnected from the battery without changing the charge on the capacitor plates. The two capacitors are then connected in parallel, with the positive plate of C connected to the negative plate of C2 and vice versa. Afterward, what is the charge on each capacitor? Express your answer using two significant figures. Enter your answers numerically separated by a comma. ? Q1, Q2 = µC Submit Request Answer Part B What is the potential difference across each capacitor? Express your answer using two significant figures. Enter your answers numerically separated by a comma. nν ΑΣφ ? AVi, AV2 = V Submit Request AnswerA cylindrical capacitor consists of a solid inner conducting core with radius 0.290 cm, surrounded by an outer hollow conducting tube. The two conductors are separated by air, and the length of the cylinder is 15.0 cm. The capacitance is 39.0 pF. Calculate the inner radius of the hollow tube. Express your answer in centimeters. r = Submit Part B for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A λ = When the capacitor is charged to 145 V, what is the charge per unit length X on the capacitor? Express your answer in coulombs per meter. Request Answer for Part B for Part B undo for Part B redo for Part B reset for Part B keyboard shortcuts for Part B help for Part B Submit Provide Feedback Request Answer cm C/mA parallel-plate capacitor has capacitance Co = 7.80 pF when there is air between the plates. The separation between the plates is 1.00 mm. What is the maximum magnitude of charge that can be placed on each plate if the electric field in the region between the plates is not to exceed 3.00x104 V/m? Express your answer with the appropriate units. TH HÀ ? Q = Value Units Part B A dielectric with K = 3.40 is inserted between the plates of the capacitor, completely filling the volume between the plates. Now what is the maximum magnitude of charge on each plate if the electric field between the plates is not to exceed 3.00x104 V/m? Express your answer with the appropriate units. HA ? Q = Value Units