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

Author Question: Carbon has a negative temperature coefficient of resistance of 0.5 103 (C)-1 . What temperature ... (Read 76 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jul 28, 2018
Carbon has a negative temperature coefficient of resistance of 0.5  103 (C)-1 . What temperature increase would result in a resistance decrease of 3 for a carbon resistor?
 a. 60C
  c. 20C
  b. 100C
  d. 40C

Question 2

A 15,000-N car on a hydraulic lift rests on a cylinder with a piston of radius 0.20 m. If a connecting cylinder with a piston of 0.050-m radius is driven by compressed air, what force must be applied to this smaller piston in order to lift the car?
 a. 600 N
  c. 3000 N
  b. 940 N
  d. 15,000 N


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mirabriestensky

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


tfester

  • Hero Member
  • *****
  • Posts: 534
Reply #2 on: Jul 28, 2018
Thank you!


mirabriestensky

  • Sr. Member
  • ****
  • Posts: 325
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Use of combination therapy during tuberculosis therapy to avoid resistance. Use of combination therapy during tuberculosis therapy to avoid resistance.
A typical ECT sensor temperature versus voltage curve. A typical ECT sensor temperature versus voltage curve.
Positive and negative selection during T-cell development. Positive and negative selection during T-cell development.
Carbon Isotope ratio Carbon Isotope ratio
Negative and positive feedback loops Negative and positive feedback loops
The annual pattern of rings changes with ocean temperature and coral health The annual pattern of rings changes with ocean temperature and coral health
Video: Cerebral Cortex Animation

For a complete list of videos, visit our video library