« previous next »

Author Question: The air resistance of falling is greatly affected by an object's frontal area and A) mass. B) ... (Read 49 times)

viki

  • Hero Member
  • *****
  • Posts: 525
on: Jul 29, 2018
The air resistance of falling is greatly affected by an object's frontal area and
 
  A) mass.
  B) weight.
  C) speed.

Question 2

When a 500-N parachutist opens his chute and experiences 800 N of air resistance, the net force on him is
 
  A) 300 N downward.
  B) 500 N downward.
  C) 800 N downward.
  D) 300 N upward.
  E) 500 N upward.


okolip

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

viki

  • Hero Member
  • *****
  • Posts: 525
Reply #2 on: Jul 29, 2018
Thanks


okolip

  • Sr. Member
  • ****
  • Posts: 362
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

In situ hybridization. This color-coded frontal section through a rat brain reveals high ... In situ hybridization. This color-coded frontal section through a rat brain reveals high ...
Air Mass Thunderstorms Air Mass Thunderstorms
Circular movement of ice over lateral area just distal to the elbow. Use medium pressure to apply ... Circular movement of ice over lateral area just distal to the elbow. Use medium pressure to apply ...
A container in the shape of a right circular cylinder with no top has surface area square feet. A container in the shape of a right circular cylinder with no top has surface area square feet.
What is the mass % of H2S04 in concentrated sulfuric acid? What is the mass % of H2S04 in concentrated sulfuric acid?
The karyotype of an XYY male. Affected individuals are usually taller than normal, and some, but not The karyotype of an XYY male. Affected individuals are usually taller than normal, and some, but not
Video: The pH scale - Strong acids and Weak acids

For a complete list of videos, visit our video library