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

Author Question: A positive object touches a neutral electroscope, and the leaves separate. Then a negative object is ... (Read 137 times)

jrubin

  • Hero Member
  • *****
  • Posts: 552
on: Jul 29, 2018
A positive object touches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leaves?
 
  A)
 
  They separate further.
  B)
 
  They move closer together.
  C)
 
  They are unaffected.
  D)
 
  cannot be determined without further information

Question 2

A 30 N-force toward the west is applied to an object. The object moves 50 m east during the time the force is applied. What is the change in kinetic energy of the object?
 
  A)
 
  0.0 J
 
  B)
 
  1.7 J
 
  C)
 
  1.0 J
 
  D)
 
  -1500 J
 
  E)
 
  750 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sweetkitty24130

  • Sr. Member
  • ****
  • Posts: 291
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

D


jrubin

  • Member
  • Posts: 552
Reply 2 on: Jul 29, 2018
Wow, this really help

sailorcrescent

  • Member
  • Posts: 334
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Large-scale impacts of the (a) positive, and (b) negative phases of the North Atlantic Oscillation. Large-scale impacts of the (a) positive, and (b) negative phases of the North Atlantic Oscillation.
Used antifreeze coolant should be kept separate and stored in a leakproof container until it can be ... Used antifreeze coolant should be kept separate and stored in a leakproof container until it can be ...
When the exhaust is lean, the PCM applies a positive current into the pump cell. When the exhaust is lean, the PCM applies a positive current into the pump cell.
Object Perception and Boundaries Object Perception and Boundaries
The cell wall of a Gram-negative bacterium, E. coli The cell wall of a Gram-negative bacterium, E. coli
The peptidoglycan layer of Gram-positive bacteria The peptidoglycan layer of Gram-positive bacteria
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

For a complete list of videos, visit our video library