This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The resistivity of gold is at a temperature of 20C. A gold wire that is 0.50 mm in diameter and 44 ... (Read 139 times)

Awilson837

  • Hero Member
  • *****
  • Posts: 509
on: Oct 11, 2019

Question 1

A jeweler needs to electroplate gold, having an atomic mass of 196.97 g/mol, onto a bracelet. He knows that the charge carriers in the ionic solution are singly-ionized gold ions, Au+, and has calculated that he must deposit of gold to reach the necessary thickness. How much current does he need to plate the bracelet in 3.0 hours? (e = 1.60 × 10-19 C, NA = 6.02 × 1023 atoms/mol)
◦ 9.1 mA
◦ 1800 mA
◦ 540 mA
◦ 33 A

Question 2

The resistivity of gold is at a temperature of 20°C. A gold wire that is 0.50 mm in diameter and 44 cm long carries a current of 380 mA. How many electrons each second pass a given cross section of the wire at 20°C? (e = 1.60 × 10-19 C)
◦ 6.3 × 1015
◦ 2.8 × 1014
◦ 2.4 × 1018
◦ 2.4 × 1017
◦ 1.2 × 1022
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Awilson837 on Oct 11, 2019

hramirez205

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Oct 11, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


Awilson837

  • Hero Member
  • *****
  • Posts: 509
Reply #2 on: Oct 11, 2019
Excellent


hramirez205

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Oct 11, 2019
Great! Please up vote :D


« previous next »
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Integumentary regulation of body temperature. Integumentary regulation of body temperature.
A typical temperature sensor circuit. A typical temperature sensor circuit.
Water Helps Regulate Your Body Temperature Water Helps Regulate Your Body Temperature
An 80-g aluminum calorimeter contains 380 g of water at an equilibrium temperature of A piece ... An 80-g aluminum calorimeter contains 380 g of water at an equilibrium temperature of A piece ...
The temperature of an average lightning bolt is 3.0 x 104 °C. What is the equiva The temperature of an average lightning bolt is 3.0 x 104 °C. What is the equiva
Video: Prone Position

For a complete list of videos, visit our video library