Author Question: A 22-W platinum wire at 20C with a temperature coefficient of resistivity of 3.9 10-3 (C)-1 will ... (Read 65 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
A 22-W platinum wire at 20C with a temperature coefficient of resistivity of 3.9  10-3 (C)-1 will have what resistance at 100C?
 a. 29 W
  c. 26 W
  b. 20 W
  d. 14 W

Question 2

By what factor is the total pressure greater at a depth of 650 m in water than at the surface where the pressure is one atmosphere? (water density = 1.0  103 kg/m3, 1 atmosphere pressure = 1.01  105 N/m2, and g = 9.8 m/s2)
 a. 100
  c. 64
  b. 83
  d. 19



huda

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

A

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

For a complete list of videos, visit our video library