Discussion board response

Question 5:
It is easier for a person to float in the ocean than in an ordinary swimming pool. This is because the salt in the ocean water adds to the mass of the water. This in turn makes the water denser than the water in a swimming pool, which does not contain salt and is therefore less dense because it has less mass. The denser the water, the better the ability to float. We can also add to this the concept of buoyant force, which is “the upward force exerted by a fluid on a substance partly or completely immersed in it” (Ostdiek & Bord, p. 148). Using our understanding of buoyant force, we can deduct that the water in the ocean is going to create a stronger upward force than the swimming pool water. Since the buoyant force of either type of water is greater than the weight of the person, the person will float, but they would float higher or better in the saltwater.

Question 13:
Consider a potato being cooked in a conventional oven; it will cook faster if a large nail is inserted into it. Based on what I have learned about conduction, which is “the transfer of heat by direct contact between atoms and molecules” (Ostdiek & Bord, p. 183), the nail will heat up, thereby transferring the heat into the potato and cooking it faster than if it were just being heated from the outside in.

Question 14:
There are three methods of heat transfer: “conduction, which is the transfer of heat between atoms and molecules in direct contact; convection, which is the transfer of heat by buoyant mixing in a fluid; and radiation, which is the transfer of heat by way of electromagnetic waves” (Ostdiek & Bord, p. 183). When I think of conduction, I think of how after I pour hot coffee into a mug, the mug becomes warm. The heat from the coffee is transferring directly to the mug. Convection is different from conduction because it deals with the heat of a fluid rising. I think of my coffee mug again, and the steam that rises from the fluid when it’s hot. Radiation is different from both conduction and convection because it deals with waves instead of molecules, such as the heat of the sun radiating to earth (Ostdiek & Bord, p. 185).

References

Ostdiek, Vern J., and Donald J. Bord. Inquiry into Physics. 8th ed., Cengage Learning, 2018.

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Money-back guarantee

At homeworkcheg.com, You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with at HomeworkCheg, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency