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
HACTEHA [7]
3 years ago
6

which component of a motor causes the magnetic field produced by the coil to regularly reverse and therefore always be repelled

by the fixed magnetic field
Physics
1 answer:
gavmur [86]3 years ago
8 0
Spark altnator spark altnator spark altnator spark altnator 
You might be interested in
Which of the following frictionless ramps (A, B, or C) will give the ball the greatest speed at the bottom of the ramp? Explain.
masya89 [10]
The velocity would be the same for all ramps.
5 0
3 years ago
Read 2 more answers
According to the graph, how many atoms would remain after two half-lives?
Fudgin [204]

Answer:

Let No be initial no of atoms

N = N0 / 2      after 1 half-life

N = N0 / 4     after 2 half-lives

So after 2 half-lives 20 of the 80 atoms remain

4 0
2 years ago
What were some benefits to the american television from analog broadcast to digital broadcast?
Elanso [62]

Answer:

nothing no no no

Explanation:

nothing cause no

8 0
2 years ago
Read 2 more answers
A trumpet creates a sound wave that has a wave speed of 350m/s and a wavelength of 0.8 m . What is the frequency of the sound wa
ValentinkaMS [17]

Answer:

The frequency of sound wave created by trumpet is 437.5Hz

Explanation:

Given

the speed of sound wave = 350 ms^{-1}

the wavelength of sound wave = 0.8 m

the frequency of sound wave = ?

All the waves have same relationship among wavelength, frequency and speed, which is given by the equation:

v = fλ, where

v is speed of the wave

f is frequency of the wave

λ is wavelength of the wave

therefore frequency of sound wave is given by

f = v/λ

 = 350ms^{-1}/0.8m

 = 437.5s^{-1}

 = 437.5Hz (since 1 s^{-1} = 1 Hz (Hertz)

Hence the frequency of sound wave created by trumpet is 437.5Hz

7 0
3 years ago
Explain why you can only change one variable in an experiment
ohaa [14]
The purpose of an experiment is to LEARN the EFFECT of something.

The way you do that is to CHANGE the thing and see what happens.

You can change as many things as you want to.  But If you change
TWO things and observe the result, then you don't know which one
of them caused the effect you see. 

Or maybe BOTH of them working together caused it.  You don't know. 

So your experiment is not really much good.  You need to do it again.
5 0
3 years ago
Other questions:
  • Study the table, which shows the length of a pendulum and the corresponding time period it takes to make a complete swing back a
    6·2 answers
  • A 100 Ω resistive heater in a tank of water (1kg) increases its temperature from 10°C to 20°C over a period of 1 hour. During th
    14·1 answer
  • What terms describes an atom's tendency to hold onto electrons
    5·2 answers
  • A dock worker pulls two boxes connected by a rope on a horizontal floor, as shown in the figure . All the ropes are horizontal,
    14·2 answers
  • The speed of light in a material is found to be 2.07 x 108 m/s. What is the most likely material from the options below if the s
    7·2 answers
  • What is the force of gravity between a 500kg bal and a 100,000kg basket 5m apart?
    7·2 answers
  • A stone was dropped off a cliff and hit the ground with a speed of 96 ft/s. What is the height of the cliff? (Use 32 ft/s2 for t
    5·1 answer
  • pectrum Inc., an automobile manufacturer, is interested in measuring the customer satisfaction of car owners. It decides to coll
    10·1 answer
  • Who Henry Mosléy?!!!​
    8·1 answer
  • 20. A 0.450-kg baseball comes off a bat and goes straight up. At a height of 10.0 m, the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!