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
Kitty [74]
3 years ago
12

NEED ANSWERS ASAP !!!

Physics
2 answers:
velikii [3]3 years ago
7 0
B
The reason I say this is because when you comb your hair the electrons do move from your hair to the comb and the comb and the charge of the hair is now negative
morpeh [17]3 years ago
3 0

Answer:

I think its B

Explanation:

because "This means that when you rubbed the plastic comb along your hair, your hair resisted the movement of the comb and slowed it down. The friction between two surfaces can cause electrons to be transferred from one surface to the other."

You might be interested in
The current in a radio measures 12 amps. The resistance of the radio is 4 ohms. What is the voltage?
alexgriva [62]
Voltage = current * resistance
Voltage = 12 * 4
Voltage = 48V
5 0
3 years ago
Read 2 more answers
What is the temperature inside of a tree?
Oliga [24]
It’s 21 c it all on the weather outside but most of the time it’s on 21
6 0
3 years ago
At a playground, a child slides down a slide that makes a 42° angle with the horizontal direction. The coefficient of kinetic fr
kumpel [21]

Answer:

a = 5.1\ m/s^2

Explanation:

Given,

The angle of the slide=42^\circ

The mass of the child is= m

coefficient of friction = 0.20

when she slides down now apply Newton's law

ma =mg \sin\theta - f

ma = mg\sin \theta -\mu mg \cos \theta

therefore the acceleration

a=g \sin\theta -\mu gcos\theta

a=g[\sin \theta -\mu \cos \theta]

a=9.8\times [\sin 42^\circ -0.2\times \cos 42^\circ]

a = 5.1\ m/s^2

hence, the magnitude of acceleration during her sliding is equal to  a = 5.1\ m/s^2

4 0
3 years ago
Why do electrical devices have resistance​
Kamila [148]
As electrons move through the conductor, some collide with atoms, other electrons, or impurities in the metal.
8 0
2 years ago
A physical change occurs when a material changes shape or size but the composition of the material does not change. True or Fals
Elden [556K]
It is true that a physical change occurs when a material changes shape or size, but the composition of the material does not change. The correct answer is True. 
6 0
2 years ago
Other questions:
  • How much heat is required to change 1.0 kg of ice, originally at -20.0 degrees celcius, into steam at 110.0 degrees celcius? Ass
    15·1 answer
  • According to a relatively recent discovery which member of the solar system has one satellite
    7·2 answers
  • Given that average speed is distance traveled divided by time, determine the values of m and n when the time it takes a beam of
    11·1 answer
  • What is the Nitrogen Family
    7·1 answer
  • Why do solid have fixed shape?
    7·2 answers
  • Calculate the volume of a 5-g sample of pure gold
    12·1 answer
  • Which is the transfer of thermal energy in matter with no overall transfer of matter? If you copy the answer from the last quest
    7·2 answers
  • 1 pc
    5·1 answer
  • 6. An elevator takes 33k) of energy to lift a group of people up 6 m. What is the total mass of
    13·1 answer
  • BRAINLYIST!! NEED HELP QUICK! DO BOTH! THANKS! BRAINLIEST!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!