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
OLEGan [10]
3 years ago
15

Ac soucre change it polarity how many time

Physics
1 answer:
Karolina [17]3 years ago
6 0
Alternating current (AC) flows half the time in one direction and half the time in the other, changing its polarity 120 times per second with 60-hertz current.
You might be interested in
Air resistance allow objects to develop full acceleration due to gravity true or false
Aloiza [94]
False. because the object cannot freefall due to resistance, so it cannot develop full acceleration.
3 0
3 years ago
Which physical activity would a global positioning system resource help you with?
PolarNik [594]

The physical activity that a global positioning system resource can help me with is : ( A )  Hiking

<h3>Function of Global positioning system ( GPS ) </h3>

GPS helps with the accurate measurement of physical activities  and factors such as location, time, elevation and so on. When hiking, the time, distance covered and location of the hiker  can be accurately measured with the use of the GPS.

Hence we can conclude that The physical activity that a global positioning system resource can help me with is  Hiking.

Learn more about GPS : brainly.com/question/9795929

#SPJ1

4 0
2 years ago
6. Two light bulbs are designed for use at 120 V and are rated at 75 W and 150 W. Which light bulb has the greater filament resi
Nonamiya [84]

\\ \bull\tt\longrightarrow P=\dfrac{V^2}{R}

  • P is power
  • R is resistance

\\ \bull\tt\longrightarrow R=\dfrac{V^2}{P}

Hence

\\ \bull\tt\longrightarrow R\propto V

\\ \bull\tt\longrightarrow R\propto \dfrac{1}{P}

  • Therefore if power is low then resistance will be high.

The first bulb has less power hence it has greater filament resistance.

5 0
3 years ago
What are the frequencies of EM spectrum
kap26 [50]

The EM spectrum has no limits.  Any frequency you can imagine
is the frequency of some electromagnetic radiation somewhere.


3 0
3 years ago
What combination of variables will make an experiment the most reliable
Virty [35]

Answer:

Explanation:

A combination of two controlled variables will make an experiment the most reliable.

Variables are the values that we take under any circumstance while doing an experiment so that we can keep on changing  and get new results at the end.

It is important to have them in pair so that two values can be kept on changing in terms of any constant condition. This will help to get better results in over all experiment data.

4 0
3 years ago
Other questions:
  • The minimum amount of energy that can be absorbed or released by matter is called
    12·1 answer
  • 4. What are three tips parents can use to improve communication with their children? Discuss one that you think is most importan
    14·1 answer
  • A crossbow:
    7·1 answer
  • Neptune is approximately 4.5 billion kilometers from the sun. What is this distance in AU?
    13·1 answer
  • The thermal transfer of energy by electromagnetic waves through the vacuum of space is called
    13·2 answers
  • A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the forcerequired to keep
    11·1 answer
  • When a tuning fork of frequency 201 Hz vi-brates beside a piano string, beats are heard.The string is tightened slightly and the
    9·1 answer
  • An 80kg astronaut traveled to the moon, where gravity is one-sixth (116) as
    9·1 answer
  • Question 7 of 10
    9·1 answer
  • Please show work with the answer and thank you
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!