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 150 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?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
An 1827 portrait by George Catlin of Eeh-Nis-Kin (Crystal Stone), a Blackfoot woman. An 1827 portrait by George Catlin of Eeh-Nis-Kin (Crystal Stone), a Blackfoot woman.
When a Tornado Strikes: Social Organization Following a Natural Disaster When a Tornado Strikes: Social Organization Following a Natural Disaster
Sixteen-pin OBD II DLC with terminals identified. Scan tools use the power pin (16) ground pin (4) ... Sixteen-pin OBD II DLC with terminals identified. Scan tools use the power pin (16) ground pin (4) ...
Reaction velocity as a function of substrate concentration Reaction velocity as a function of substrate concentration
A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the ... A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the ...
Video: Flexor reflex & Crossed extensor reflex

For a complete list of videos, visit our video library