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 105 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?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Setup used to check the opening temperature of a thermostat. Setup used to check the opening temperature of a thermostat.
This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ... This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ...
The relationship between RH and temperature. The relationship between RH and temperature.
IPCC Temperature Increase Predictions Relative to 1986-2005 IPCC Temperature Increase Predictions Relative to 1986-2005
Find the temperature of the room (above the outside temperature) at the end of 120 min Find the temperature of the room (above the outside temperature) at the end of 120 min
Calculate KP for the following reactions at the indicated temperature. Calculate KP for the following reactions at the indicated temperature.
Video: Graded potentials - electrical characteristics and types

For a complete list of videos, visit our video library