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
In-s [12.5K]
4 years ago
8

PLEASE ANSWER QUESTION 25! NOT 24. Brainliest and 25 points!

Physics
2 answers:
Inessa05 [86]4 years ago
5 0

D) Guard against a short circuit electrocuting a user.

"The 4-wire setup is inherently safer and better able to prevent electrical shock, which in the case of a 220/240-volt circuit can be fatal."

Citrus2011 [14]4 years ago
4 0

Answer:

the answer is D

Explanation:

You might be interested in
In 1600, Dr. William Gilbert coined the term “electrica,” a word that gave rise to our word electricity.
mrs_skeptik [129]

They recorded the first references to electrical effects, such as static electricity and lightning, over 2,500 years ago. It was not until 1600 that a man named Dr. William Gilbert coined the term “electrica,” a Latin word which describes the static charge that develops when certain materials are rubbed against amber.

3 0
3 years ago
What characteristics of EM waves did you discover?
jarptica [38.1K]

The characteristics of electromagnetic waves typically represent as follows:

  • There are changes in the electric and magnetic fields simultaneously so that both fields have maximum and minimum values ​​at the same time and place.
  • The direction of the electric field and the magnetic field are perpendicular to each other. The direction of both is perpendicular to the direction of the wave propagation.
  • The shape of electromagnetic waves is transverse waves.
  • It has general wave characteristics like polarization, reflection, refraction, interference, and diffraction.
  • The amount of the electric field (E) is directly proportional to the magnitude of the magnetic field, with the relationship E = cB.
  • The universal constant of the velocity of electromagnetic waves in a vacuum is \boxed{ \ c = 3 \times 10^8 \ m/s. \ }
  • The speed at which electromagnetic waves propagate depends merely on the electrical and magnetic properties of the medium that it travels on.
  • Because electromagnetic waves do not contain an electric charge, they do not experience any possible deviation in the electric or magnetic fields.
<h3>Further explanation</h3>
  • Two physicists who contributed significantly to developing the concept of electromagnetic waves are Faraday and Maxwell around 1831-1864.
  • From the observations, Faraday suggested that changes in the magnetic field cause an electric charge to flow in the loop of wire, contributing in the emergence of an electric field.
  • Maxwell proposed a reverse process, which is a change in the electric field will generate a magnetic field.
  • As follows, according to Faraday's Law, changes in sinusoidal magnetic fields generate electric fields which also change sinusoidally.
  • Meantime, according to Maxwell's Hypothesis, changes in sinusoidal electric fields generate magnetic fields which also change sinusoidally.
  • Furthermore, there is a process of combining electric and magnetic fields that propagate in all directions called electromagnetic waves.
<h3>Learn more </h3>
  1. About vector components brainly.com/question/1600633
  2. Determine the shortest wavelength in electron transition brainly.com/question/4986277
  3. Particle's speed and direction of motion brainly.com/question/2814900

Keywords: the characteristics, electromagnetic waves, transverse, vacuum, electric fields, magnetic, perpendicular, propagation, Maxwell, Faraday, the speed, polarization, reflection, refraction, interference, and diffraction

4 0
4 years ago
Read 2 more answers
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
Ksenya-84 [330]

Downstream, the current is helping the swimmer go faster relative to the land



7 0
3 years ago
Why steel ships becomes megnetized as it is constructed
Ksivusya [100]
Bcjcghfggcvhyzzfu6ytehnfnffnnxbzbxbdnsnddbbf
3 0
4 years ago
A 10-g bullet moving horizontally with a speed of 1.8 km/s strikes and passes through a 5.0-kg block initially at rest on a hori
UNO [17]

Answer:

6.4 J

Explanation:

m = mass of the bullet = 10 g = 0.010 kg

v = initial velocity of bullet before collision = 1.8 km/s = 1800 m/s

v'  = final velocity of the bullet after collision = 1 km/s = 1000 m/s

M = mass of the block = 5 kg

V = initial velocity of block before collision = 0 m/s

V'  = final velocity of the block after collision = ?

Using conservation of momentum

mv + MV = mv' + MV'

(0.010) (1800) + (5) (0) = (0.010) (1000) + (5) V'

V' = 1.6 m/s

Kinetic energy of the block after the collision is given as

KE = (0.5) M V'²

KE = (0.5) (5) (1.6)²

KE = 6.4 J

4 0
4 years ago
Other questions:
  • Please help on this one?
    7·2 answers
  • When analyzing the results of a scientific experiment, Kevin should base his conclusion on
    11·2 answers
  • Help me slove this problem 115 divided by 2
    14·2 answers
  • Explain why is it easy to slip on a floor that is wet
    11·2 answers
  • What is the energy of motion?
    15·2 answers
  • Represented by symbol; all are found on a periodic table
    14·1 answer
  • Can u help me please
    8·1 answer
  • It took 50 joules to push a shopping cart 5 meters.with what face was the shopping cart pushed?
    6·1 answer
  • Find deacceleration An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When
    12·1 answer
  • White visible light travels from the Sun to Earth. What is the best description of white light?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!