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
Nata [24]
3 years ago
8

What is the repulsive force between two pith balls that are 8.00 cm apart and have equal charges of −25.0 nc? g?

Physics
3 answers:
garri49 [273]3 years ago
8 0

Solution:

The force between two charges given by Columb's law ithe force between two charges given by Coloumb law is\\
\left | F \right |=\frac{kq_{1}q_{2}}{r^{2}}\\\\
where k is the constant equal to\\  \rn Now,\\
We have \\r=0.008mand q1=q2=-25.0\times10^{-9}\\
\left | F \right |=\left ( 8.099\times10^{9}\frac{Nm^{2}}{c^{2}} \right )\times\left ( \frac{25.0\times10^{-9}\times 25.0\times10^{-9}}{0.008^{2}} \right )\\
=1.21\times10^{-3}

Daniel [21]3 years ago
7 0

To calculate the force between two negative charges, we use the formula which is given by the Coulomb`s Law as

F=\frac{kq_{1}q_{2}  }{r^{2} }

Here, q_{1} andq_{2} are the charges on the pith balls, r is the separation between the charges and k is constant and its value is  8.99\times 10^9 N m^2/C^2.

Given  q_{1} =q_{2} =-25 nC=-25\times 10^{-9}C and  r=8 cm=8\times10^{-2} m.

Substituting these values in above formula we get,

F= 8.99\times 10^9 N m^2/C^2\frac{(-25\times 10^{-9}C)(-25\times 10^{-9}C)}{(8\times10^{-2} m)^2} \\\\\ F= 877929.7\times 10^{-9}  N\\\\F=8.8\times10^{-4}N

Thus, the repulsive force between two pith balls is 8.8\times10^{-4}N.

valina [46]3 years ago
7 0

Solution:

The force between two charges given by Columb's law ithe force between two charges given by Coloumb law is\\
\left | F \right |=\frac{kq_{1}q_{2}}{r^{2}}\\\\
where k is the constant equal to\\  \rn Now,\\
We have \\r=0.008mand q1=q2=-25.0\times10^{-9}\\
\left | F \right |=\left ( 8.099\times10^{9}\frac{Nm^{2}}{c^{2}} \right )\times\left ( \frac{25.0\times10^{-9}\times 25.0\times10^{-9}}{0.008^{2}} \right )\\
=1.21\times10^{-3}

You might be interested in
1. What part (or parts) of this system store potential energy?
choli [55]

Answer:

<em>➢</em><em>when you crank you make kinetic energy and then the kinetic energy makes potential energy.</em>

Explanation:

<em>hope</em><em> it</em><em> will</em><em> help</em><em> you</em><em> have</em><em> a</em><em> great</em><em> day</em><em> bye</em><em> and</em><em> Mark</em><em> brainlist</em><em> if</em><em> the</em><em> answer</em><em> is</em><em> correct</em>

<em>kai6417</em>

<em>#</em><em>c</em><em>a</em><em>r</em><em>r</em><em>y</em><em> </em><em>on </em><em>learning</em>

5 0
2 years ago
A mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. It ta
Tomtit [17]

Answer:

(a) 185 N/m

(b) 3.083 kg

Explanation:

(a)

Using,

E = 1/2ke²....................... Equation 1

Where E = work done to compress the spring, k = spring constant of the spring, e = compression of the spring.

make k the subject of the equation

k = 2E/e²............... Equation 2

Given: E = 3.7 J, e = 0.20 m

Substitute into equation 2

k = 2(3.7)/0.2²

k = 185 N/m.

(b)

Using,

F = ma.............. Equation 2

Where F = force applied to the spring, m = mass attached to the spring, a = acceleration of the spring.

But from hook's law,

F = ke................. Equation 3

substitute equation 3 into equation 2

ke = ma

make m the subject of the equation

m = ke/a................ Equation 4

Given: k = 185 N/m, e = 0.2 m, a = 12 m/s²

Substitute into equation 4

m = 185(0.2)/12

m = 3.083 kg

3 0
2 years ago
Read 2 more answers
Before the start of a trip, air in a tire is at 320 kPa gage pressure and 27°C temperature. At the end of the trip the tire pres
tia_tia [17]

Answer:

The temperature of air in the tire is 55.57 ºC

Explanation:

Please look at the solution in the attached Word file

Download docx
7 0
3 years ago
Which term BEST describes energy
mylen [45]

Answer:

batteries- chemical energy

food - heat energy

Explanation:

hope the answer helps u

3 0
2 years ago
Read 2 more answers
What is a definition for reactivity with vinegar?
STALIN [3.7K]
The answer to this is Chemical property. 
6 0
3 years ago
Other questions:
  • A technician is troubleshooting a problem. The technician tests the theory and determines the theory is confirmed. Which of the
    11·1 answer
  • How can electric energy be converted to heat energy?
    8·1 answer
  • What is an effector strain of bacteria
    13·1 answer
  • The study of the living and non living things in a environment is
    9·1 answer
  • For number 1 I'm really confused
    6·2 answers
  • How does rhyolite form?
    11·2 answers
  • Nerve impulses are carried along axons, the elongated fibers that transmit neural signals. We can model an axon as a tube with a
    5·1 answer
  • In preparing to shoot an arrow, an archer pulls a bow string back 0.424 m by exerting a force that increases uniformly from 0 to
    15·1 answer
  • Suppose a mad scientist went back in time to the beginning of the solar system and caused the newly formed Mars and Venus to swi
    6·1 answer
  • What can scan tiny details inside the human body by using principles of electromagnetism.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!