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

Author Question: A 30. N stone is dropped from a height of 10. m, and strikes the ground with a velocity of 13. m/s. ... (Read 263 times)

BrownTown3

  • Hero Member
  • *****
  • Posts: 564
on: Jul 27, 2018
A 30. N stone is dropped from a height of 10. m, and strikes the ground with a velocity of 13. m/s. What average force of air friction acts on it as it falls?
 
  A) 7.2 N
  B) 2.9 N
  C) 1.2 N
  D) 4.1 N
  E) 0.13 KN

Question 2

Two charged objects attract each other with a certain force. If the charges on both objects are doubled with no change in separation, the force between them
 
  A) becomes zero.
  B) doubles.
  C) halves.
  D) quadruples.
  E) increases, but we can't say how much without knowing the distance between them.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stillxalice

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


BrownTown3

  • Hero Member
  • *****
  • Posts: 564
Reply #2 on: Jul 27, 2018
TY


stillxalice

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Upper Paleolithic stone tools include blade-based tools as seen here being produced from a blade cor Upper Paleolithic stone tools include blade-based tools as seen here being produced from a blade cor
Don Gray, Stone #2, from the series Nine Stones. Don Gray, Stone #2, from the series Nine Stones.
When a Tornado Strikes: Social Organization Following a Natural Disaster When a Tornado Strikes: Social Organization Following a Natural Disaster
Whenever a vehicle is raised off the ground, a safety stand should be placed under the frame, axle, ... Whenever a vehicle is raised off the ground, a safety stand should be placed under the frame, axle, ...
A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ... A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ...
Video: Factors that influence muscle tension - Sarcomere length and force, understretched and overstretched

For a complete list of videos, visit our video library