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
Romashka-Z-Leto [24]
4 years ago
10

Sonia was experimenting with electric charges. She tied two inflated balloons together, held them next to each other, and rubbed

both with a piece of wool. What did Sonia observe, and why?
Physics
2 answers:
castortr0y [4]4 years ago
8 0

Answer:

Sonia observed that the two balloons repelled each other. This is because both balloons acquired the same charge when she rubbed them with the piece of wool, and like charges repel each other.

Explanation:

hope this helps ;)

AVprozaik [17]4 years ago
6 0

Answer:

Sonia will experience repulsion in two balloons

Explanation:

Here when we rub the balloon with the woolen cloth then due to friction between the cloth and balloon electrons from balloon will transfer to woolen cloth.

Due to transfer of electron the balloon will get positive charge which is given by

Q = Ne

so here since both balloons are rubbed against woolen cloth so both balloon will get some positive charge

now we know by the property of charge that two similar charges will always repel each other so here two balloons will repel each other after they rubbed against woolen cloth.

You might be interested in
A puppy is running with a speed of 11.2 m/s towards it owner when it
Levart [38]

Answer:

-5.6m/s²

Explanation:

Given parameters:

Initial speed  = 11.2m/s

Time of running  = 2s

Unknown:

Acceleration of the puppy  = ?

Solution:

Acceleration is the rate of change of velocity with time.

So;

   Acceleration  = \frac{Final speed  - initial speed }{time}  

final speed  = 0m/s

 Acceleration  = \frac{0 - 11.2}{2}    = -5.6m/s²

8 0
3 years ago
In reaching her destination, a backpacker walks with an average velocity of 1.32 m/s, due west. This average velocity results, b
Svetach [21]

Answer:

distance in east is 1273.78 m

Explanation:

given data

average velocity = 1.32 m/s west =

hike = 5.21 km = 5.21 × 10³ m

average velocity = 3.49 m/s west

average velocity = 0.687 m/s east

to find out

distance in east

solution

we consider here distance in east  is = x

so distance from starting point = 5.21 × 10³ - x        ...................1

and we can say time required to reach end

time required = distance / speed

time required = \frac{5.21 *10^3 - x}{1.32}    ................2

and

time required for 6.44 km west

time required = \frac{5.21 *10^3 - x}{3.49}    ................3

and time required for distance x

time required = \frac{x}{0.687}    ................4

so from equation 2 , 3 and 4

\frac{5.21 *10^3 - x}{1.32} = \frac{5.21 *10^3 - x}{3.49}  + \frac{x}{0.687}

x = 1273.78 m

so distance in east is 1273.78 m

8 0
3 years ago
2..Read the following statements carefully and choose the correct option
Softa [21]

Answer:

statement 1 is correct

2 not sure

Explanation:

6 0
3 years ago
Brad is working on a speed problem in physics class. The problem tells him that a girl runs from her house to the park 0.05 km a
Dmitriy789 [7]
It is corecct becasue it 10 s more added from 0.05
7 0
3 years ago
Read 2 more answers
You are standing on a train station platform as a train goes by close to you. As the train approaches, you hear the whistle soun
adoni [48]

Answer: v = (33320 - 340f2)/( f2 + 98)

Explanation: this question refers to Doppler effect, hence,

f1 = { V / (V - v)} x f2

f1 = 98Hz, f2 = 76 Hz, V = 340m/s, v = ?, fs = fsourcs

For f1,

98 = { 340 / (340 + v)} x fs ...(i)

for f2,

f2 = { 340 / (340 - v)} x fs ... (ii)

Divide (ii) by (i)

98/f2 = [{ 340 / (340 + v)} x fs]÷ [ 340 / (340 - v)} x fs]

98/f2 = {340 / (340 + v)} x fs x (340 - v)} / 340 x fs

98/f2 = (340 + v)/ (340 - v)

Cross multiplying

98(340 - v) = f2 (340 + v)

33320 - 98v = 340f2 + vf2

Collecting like terms

vf2 +98v = 33320 - 340f2

v(f2 +98) = 33320 - 340f2

v = (33320 - 340f2)/( f2 + 98)

5 0
4 years ago
Other questions:
  • When a car has a dead battery it can often be started by connecting the battery from another car?
    9·1 answer
  • 1. A student bicycled 12 kilometers east in 2 hours. What was the student's average velocity during the trip?
    13·1 answer
  • The ideal mechanical advantage of an inclined plane is 3.5, and its efficiency is 0.6. What is the mechanical advantage of the i
    15·1 answer
  • After you pick up a spare, your bowling ball rolls without slipping back toward the ball rack with a linear speed of 2.85 m/s. T
    9·1 answer
  • Give an example of kinetic energy transferring into potential energy
    5·1 answer
  • Two interfering sound waves have frequencies of 223 Hz and 214 Hz. Determine the beat period (in s) of the composite wave. (Hint
    11·1 answer
  • An atom that has a negative four charge will have which of the following?
    10·1 answer
  • Given a 10-V power supply, would a 20-ohm resistor and a 5-ohm resistor need to be arranged in parallel or in series to generate
    9·1 answer
  • Hi people see bye 18 45 36
    10·1 answer
  • Which of the following is the correct sequence of steps in the four-stroke engine cycle?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!