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
madreJ [45]
3 years ago
6

Two foam peanuts become equally charged as they fall out of a cardboard box. Each foam peanut carries a charge of 8 x 10^-4 C. I

f the peanuts are 0.05 m apart, what is the electric force between them? Assume that k = 9 x 10^9 Nm^2/C^2. Use Coulomb’s law equation: F = kq1q2/r^2.
A. 115,200 N
B. 2,304,000 N
C. 0.000000434 N
D. 0.0000086 N
Physics
1 answer:
jok3333 [9.3K]3 years ago
7 0

Answer:

Answer labeled B : 2,304,000 N

Explanation:

Recall the formula for the electric force:

F_e=9\,\,10^9\,  \,  \frac{q_1*q_2}{d^2} \\F_e=9\,\,10^9\,  \,  \frac{8\,10^{-4}*8\,10^{-4}}{0.05^2} \\F_e=2,304,000\,\,N

which agrees with answer B provided.

You might be interested in
What force does the water exert (in addition to that due to atmospheric pressure) on a submarine window of radius 44.0 cm at a d
Butoxors [25]
Calculate the pressure due to sea water as density*depth.
That is, 
pressure = (1025 kg/m^3)*((9400 m)*(9.8 m/s^2) = 94423000 Pa = 94423 kPa

Atmospheric pressure is  101.3 kPa
Total pressure is  94423 + 101.3 = 94524 kPa (approx)

The area of the window is π(0.44 m)^2 = 0.6082 m^2

The force on the window is
(94524 kPa)*(0.6082 m^2) = 57489.7 kN = 57.5 MN approx
3 0
4 years ago
What is the period and frequency of a water wave if 4.0 complete waves pass a fixed point in 10 seconds
olga2289 [7]
The correct answer for this question is this one: C) 2.5s. T<span>he period and frequency of a water wave if 4.0 complete waves pass a fixed point in 10 seconds is that 2.5 s
</span>
Here are the following choices:
<span>A) 0.25s 
B) 0.40s 
C) 2.5s 
D) 4.0s</span>
7 0
3 years ago
If an airplane travels a distance of 500 km in 5 hours, what is its average speed?
kolezko [41]

The plane travels 100km per hour


8 0
3 years ago
Read 2 more answers
First to answer and gets it correct gets brainliest
neonofarm [45]

Answer:

b

Explanation:

try looking it up if u need further help google is there to help you

3 0
4 years ago
Which of the following elements is commonly found in the Earth's crust, living matter, oceans, and atmosphere? A. carbon B. argo
jekas [21]
The answer is carbon.
8 0
3 years ago
Read 2 more answers
Other questions:
  • When Kevin pulls his cotton shirt off his body, the electrons get transferred from the (shirt or body) to the (shirt or body) .
    15·2 answers
  • What effect does time have on the speed of a moving object
    10·1 answer
  • What s the importance of completing client records correctly
    8·2 answers
  • Why do we need food even we lying in bed​
    10·2 answers
  • You are drawing a branching diagram to show the relationship between Turtles frogs and alligators which two organisms does the d
    7·1 answer
  • A(n) 0.212 kg baseball is thrown with a speed of 18.8 m/s. It is hit straight back at the pitcher with a final speed of 21.2 m/s
    14·1 answer
  • A point source emits electromagnetic energy at a rate of 100 W. The intensity 10 m from the source is
    9·1 answer
  • Suzie (of mass 76 kg) is roller-blading down the sidewalk going 50 miles per hour. She notices a group of workers down the walkw
    15·1 answer
  • Orb spiders make silk with a typical diameter of 0.15 mm. a. A typical large orb spider has a mass of 0.50 g. If this spider sus
    9·1 answer
  • How does the energy from the person's hand get to the last domino?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!