« previous next »

Author Question: A large block of wood and a small block of iron each register 2000 N on a weighing scale. Taking ... (Read 278 times)

jrubin

  • Hero Member
  • *****
  • Posts: 552
on: Jul 29, 2018
A large block of wood and a small block of iron each register 2000 N on a weighing scale. Taking buoyancy of air into account, which has the greater mass?
 
  A) wood
  B) iron
  C) both the same

Question 2

An umbrella tends to jerk upward on a windy day principally because
 
  A) air gets trapped under the umbrella, which warms, and rises.
  B) buoyancy increases with increasing wind speed.
  C) air pressure is reduced over the curved top surface.
  D) all of the above


elizabethrperez

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

jrubin

  • Hero Member
  • *****
  • Posts: 552
Reply #2 on: Jul 29, 2018
Thank you!


elizabethrperez

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

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?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Taking a Patient’s Oral Temperature with an Electronic Thermometer Taking a Patient’s Oral Temperature with an Electronic Thermometer
Glascow Coma Scale Glascow Coma Scale
Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S
Group that may block N-terminus and C-terminus Group that may block N-terminus and C-terminus
Brown Bread contains calcium, phosphorous, potassium, iron, magnesium and sodiu Brown Bread contains calcium, phosphorous, potassium, iron, magnesium and sodiu
Heart block Heart block
Video: The Lagging Strand in DNA Replication and Replication in Action

For a complete list of videos, visit our video library