« previous next »

Author Question: A 30.0-kg object has a drag force with a magnitude proportional to the square of its speed. The ... (Read 231 times)

Ebrown

  • Hero Member
  • *****
  • Posts: 567
on: Jul 29, 2018
A 30.0-kg object has a drag force with a magnitude proportional to the square of its speed. The object falls with an acceleration 4.00 m/s2 downward when it is falling downward at 70.0 m/s. What is its terminal velocity?
 
  A)
 
  110 m/s
 
  B)
 
  157 m/s
 
  C)
 
  91.0 m/s
 
  D)
 
  172 m/s
 
  E)
 
  108 m/s

Question 2

Vector cross products are not commutative.
 
  Indicate whether the statement is true or false


rachel

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Speed of Earth Speed of Earth
Correct position when lifting a heavy object off the floor. Correct position when lifting a heavy object off the floor.
The Coriolis Force The Coriolis Force
Find the magnitude and the direction of the resultant vector of the vectors below. Find the magnitude and the direction of the resultant vector of the vectors below.
1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ... 1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ...
A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ... A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ...
Video: Lipid absorption - end products & transport mechanism

For a complete list of videos, visit our video library