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

Author Question: Since the rate of heat transfer by conduction is proportional to the T, what percent savings in your ... (Read 91 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Jul 28, 2018
Since the rate of heat transfer by conduction is proportional to the T, what percent savings in your heating bill would you expect if you turned the thermostat down from 75 to 65F, and the outside temperature is 25F?
 a. 10 b. 20 c. 30 d. 40 e. 50

Question 2

An artillery shell is fired with an initial velocity of 300 m/s at 55.0 above the horizontal. It explodes on a mountainside 42.0 s after firing. If x is horizontal and y vertical, find the (x, y) coordinates where the shell explodes.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

huda

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

7.22 km, 1.68 km


K@

  • Hero Member
  • *****
  • Posts: 608
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


huda

  • Sr. Member
  • ****
  • Posts: 304
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Effects of growth rate on development. Effects of growth rate on development.
Heat Index Heat Index
One target for expanding medical services involves vaccinations. Only 78 percent of children ages 19 ... One target for expanding medical services involves vaccinations. Only 78 percent of children ages 19 ...
(a) In normal nerve conduction, sodium ions (Na+) enter the sodium channels along a neuron and ... (a) In normal nerve conduction, sodium ions (Na+) enter the sodium channels along a neuron and ...
Static Stability & Environmental Lapse Rate Static Stability & Environmental Lapse Rate
The rate of replacement of a recessive allele d by the dominant allele D by mutation alone. Even tho The rate of replacement of a recessive allele d by the dominant allele D by mutation alone. Even tho
Video: Vasectomy

For a complete list of videos, visit our video library