Please answer these problems:

V Part A A sculptor has asked you to help electroplate gold onto a brass statue. You know that the charge carriers in the ionic solution are singly ionized gold ions, and you've calculated that you must How much current do you need, in mA, to plate the statue in 4.5 hours? deposit 0.50 g of gold to reach the necessary thickness. Express your answer in milliamperes. AEd ? I = mA Submit Request AnswerI Review V PartA Awire of length L and cross~sectional area A has resistance R. What will be the resistance Rstretched of the wire if it is stretched to twice its original length? Assume that the density and resistivity of the material do not change when the wire is stretched. Express your answer in terms of the wire's original resistance R. b View Available Hint(s) Rstretched = V Part A The figure (gure 1)is a currentversuspotentiaIdifference graph for a material. . . _ What IS the material's reSIstance? Express your answer in ohms. Muest Answer Provide Feedback Figure 1 of1 [(A) 0 AVG\" Part A A 1.3-m-long gold wire that is 0.10 mm in diameter? What is the resistance of Express your answer in ohms. DA AEQ d ? R = Submit Request Answer V Part B A 90-cm-long piece of carbon with a 1.6 mm x 1.6 mm square cross section? Express your answer in ohms. VO AEQ ? R = Submit Request AnswerPart A A 20-cm-long nichrome wire is connected across the terminals of a 1.5 V battery. What is the electric field inside the wire? Express your answer with the appropriate units. E= Value V /m Submit Request Answer Part B What is the current density inside the wire? Express your answer with the appropriate units. J = Value A/m Submit Request Answer Part C If the current in the wire is 1.8 A , what is the wire's diameter? Express your answer with the appropriate units. HLA d= Value mm Submit Request