1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vlada [557]
3 years ago
7

Three equal point charges, each with charge 1.05 μCμC , are placed at the vertices of an equilateral triangle whose sides are of

length 0.500 mm . What is the electric potential energy UUU of the system? (Take as zero the potential energy of the three charges when they are infinitely far apart.)
Physics
1 answer:
kirza4 [7]3 years ago
6 0

Answer:

The value is U  = 0.06 \  J

Explanation:

From the question we are told that

The value of charge on each three point charge is

q_1 = q_2 = q_3 =q=  1.05 \mu C  =  1.05 *10^{-6} \  C

The length of the sides of the equilateral triangle is r  =  0.500 \

Generally the total potential energy is mathematically represented as

U  = k *  [ \frac{q_1 *  q_2}{r}  +  \frac{q_2 *  q_3}{r}   + \frac{q_3 *  q_1}{r} ]

=> U  = k * 3 * \frac{q^2}{r}

Here k is coulomb constant with value k = 9*10^{9}\  kg\cdot m^3\cdot s^{-4} \cdot A^{-2}.

=>    U  = 9*10^9 * 3 * \frac{(1.05 *10^{-6})^2}{0.5 }

U  = 0.06 \  J

You might be interested in
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angl
vazorg [7]

Answer:879.29 N-m

Explanation:

Given

mass of first child m_1=44 kg

distance of first child from tree is r_1=1 m

tree is inclined at an angle of \theta =27^{\circ}

mass of second child m_1=27 kg

distance of second child from tree is r_2=2.1 m

Weight of first child=m_1g=431.2 kg

Weight of second child=m_2g=264.6 kg

Torque of first child weight=m_1g\cos \theta \cdot r_1

T_1=44\times 9.8\times \cos 27\times 1=384.202 N-m

Torque of second child weight=m_2g\cos \theta \cdot r_2

T_2=27\times 9.8\times \cos 27\times 2.1=495.096 N-m

Net torque T_{net}=T_1+T_2=384.202+495.096=879.29 N-m

6 0
3 years ago
WILL MARK BRAINLIEST
rodikova [14]

Answer:

152,155 J

Explanation:

115,333 + 36,822 = 152,155J

8 0
2 years ago
What can happen to the atomic particles when u rub two objects together ​
MAVERICK [17]
Look it up on google it has the answer
3 0
3 years ago
How do you unscramble the science topic atsetlectoicnp
noname [10]
Tectonic plates is the unscrambled phrase in that jumble.
4 0
3 years ago
Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.
ankoles [38]

Answer:

The correct answer is - 200000 J

Explanation:

We use the formula of kinetic energy:

The formula to calculate kinetic energy is,

Here,

Ec =1/2 x  m x v^2

The mass of the roller coaster is,  m  =  1000  k g

The speed of the roller coaster is, v = 20.0 m/s

 Therefore,

Ec=1/2 x 1000kg x (20m/s)^2 = 200.000Joule

200,000J

7 0
3 years ago
Other questions:
  • If you're going 80 mph how long does it take to 80 miles
    12·1 answer
  • Does current flow through or across a resistor?
    9·2 answers
  • What is a non example of temperature
    15·2 answers
  • Multiple Select
    6·2 answers
  • A ball falling through the air has--------
    15·1 answer
  • Is a mirrors surface transparent translucent or opaque how do you know.
    5·1 answer
  • A 53.4 kg girl is at rest on 3.55 kg skateboard. She jumps forward at 1.32 m/s. What is the velocity of the skateboard afterword
    7·1 answer
  • The distance between two crests of a transverse wave is referred to as the Question 1 options: medium. amplitude. wavelength. ph
    15·1 answer
  • If the net force is 7 what is the magnitude
    15·1 answer
  • A polythene rod may be charged by rubbing it with a cloth while being held in the hand but a metal rod cannot be charged in a si
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!