« previous next »

Author Question: Particle A (mass = m, charge = Q) and B (mass = m, charge = 5 Q) are released from rest with the ... (Read 950 times)

Alainaaa8

  • Hero Member
  • *****
  • Posts: 576
on: Jul 28, 2018
Particle A (mass = m, charge = Q) and B (mass = m, charge = 5 Q) are released from rest with the distance between them equal to 1.0 m. If Q = 12 mC, what is the kinetic energy of particle B at the instant when the particles are 3.0 m apart?
 a. 8.6 J
  b. 3.8 J
  c. 6.0 J
  d. 2.2 J
  e. 4.3 J

Question 2

A particle (charge = Q) is kept in a fixed position at point P, and a second particle (charge = q) is released from rest when it is a distance R from P. If Q = +2.0 mC, q = -1.5 mC, and R = 30 cm, what is the kinetic energy of the moving particle after it has moved a distance of 10 cm?
 a. 60 kJ
  b. 45 kJ
  c. 75 kJ
  d. 90 kJ
  e. 230 kJ


Shshxj

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

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

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Chemical equilibrium and the law of mass action. Chemical equilibrium and the law of mass action.
Mass Wasting Triggers Mass Wasting Triggers
In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on
An electron is accelerated from rest through a potential difference. After acceleration the ... An electron is accelerated from rest through a potential difference. After acceleration the ...
Calculate the atomic mass of element Calculate the atomic mass of element
A soccer ball is released from rest at the top of a grassy incline. After 8.6 seconds, the ball ... A soccer ball is released from rest at the top of a grassy incline. After 8.6 seconds, the ball ...
Video: Pores and Ion Channels

For a complete list of videos, visit our video library