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

Author Question: A 2.0 mm diameter wire of length 20 m has a resistance of 0.25 . What is the resistivity of the ... (Read 383 times)

swpotter12

  • Hero Member
  • *****
  • Posts: 527
on: Jul 29, 2018
A 2.0 mm diameter wire of length 20 m has a resistance of 0.25 . What is the resistivity of the wire?
 
  A) 0.25   m
  B) 5.0  10-7   m
  C) 3.9  10-8   m
  D) 4.0  10-7   m
  E) 16  10-8   m

Question 2

In Figure 7.7, a 5.00-kg block is moving at 5.00 m/s along a horizontal frictionless surface toward an ideal spring that is attached to a wall. After the block collides with the spring, the spring is compressed a maximum distance of 0.68 m.
 
  What is the speed of the block when the spring is compressed to only one-half of the maximum distance?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

randomguy133

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

4.3 m/s


swpotter12

  • Hero Member
  • *****
  • Posts: 527
Reply #2 on: Jul 29, 2018
TY


randomguy133

  • Sr. Member
  • ****
  • Posts: 310
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

This image shows an artists depiction of a 10-kilometer (six-mile) diameter astero This image shows an artists depiction of a 10-kilometer (six-mile) diameter astero
Drug Resistance Drug Resistance
A wire wound electrical heater is used to warm the intake air on some diesel engines A wire wound electrical heater is used to warm the intake air on some diesel engines
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 ...
If an injector has the specified resistance, this does not mean that it is okay. This injector had ... If an injector has the specified resistance, this does not mean that it is okay. This injector had ...
Pinch the sternocleidomastoid (SCM) muscle at points along its length. Turn head to side to expose ... Pinch the sternocleidomastoid (SCM) muscle at points along its length. Turn head to side to expose ...
Video: Barriers - eye structures, digestive mucosa, respiratory mucosa & genitourinary mucosa

For a complete list of videos, visit our video library