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

Author Question: A metal wire has a resistance of 10.00 W at a temperature of 20.0C. If the same wire has a ... (Read 232 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
on: Jul 28, 2018
A metal wire has a resistance of 10.00 W at a temperature of 20.0C. If the same wire has a resistance of 10.55 W at 90C, what is the resistance when its temperature is 0.0C?
 a. 13.8 W
  c. 9.84 W
  b. 9.69 W
  d. 0.70 W

Question 2

Dams at two different locations are needed to form a lake. When the lake is filled, the water level will be at the top of both dams. Dam 2 is twice as high and three as wide as Dam 1 . How much greater is the force of the water on Dam 2 than the force on Dam 1? (Ignore atmospheric pressure; it is pushing on both sides of the dams.)
 a. 24
  c. 6
  b. 12
  d. 3


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

honnalora

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

C

Answer to Question 2

B


audragclark

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jul 28, 2018
Thanks


honnalora

  • Sr. Member
  • ****
  • Posts: 325
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

An analogy for how cardiac output, resistance, and blood pressure are related. An analogy for how cardiac output, resistance, and blood pressure are related.
Temperature Conversions Temperature Conversions
Reinstall the valve cover being careful to not pinch a wire or vacuum hose between the cover and ... Reinstall the valve cover being careful to not pinch a wire or vacuum hose between the cover and ...
The transition between steps usually occurs at a temperature that would not interfere with cold ... The transition between steps usually occurs at a temperature that would not interfere with cold ...
Dash Warning Lights: Coolant Temperature Light Dash Warning Lights: Coolant Temperature Light
Three different patterns of temperature-dependent sex determination (TSD) in reptiles Three different patterns of temperature-dependent sex determination (TSD) in reptiles
Video: Knee Animation

For a complete list of videos, visit our video library