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
ratelena [41]
3 years ago
12

(PLEASE HELP1!1!1!1!1!1!1!1!1!1)

Physics
1 answer:
AlladinOne [14]3 years ago
5 0

Answer:

electromagnets.

Explanation:

Coal has been used for years along with natural gas and nuclear energy so it would have to be electromagnets.

You might be interested in
radio waves are electromagnetic waves that travel at the speed of light 300 000 kilometers per second what is the wave length of
Anarel [89]
<h2>Answer:</h2>

<h2>3m</h2>

<h3>The wavelength of 100-MHz radio waves is 3 m, yet using the sensitivity of the resonant frequency to the magnetic field strength, details smaller than a millimeter can be imaged.</h3>

<h2>Hope this helps you ❤️</h2>

<h2>MaRk mE aS braiNliest ❤️</h2>

3 0
3 years ago
An egg of mass 0.060 kg is dropped from the top of a building. Just before it reaches the ground, it has a total kinetic energy
3241004551 [841]

The velocity is 14 m/s

The parameters given on the question are

mass= 0.060 kg

kinetic energy= 5.9 joules

K.E= 1/2mv²

5.9= 1/2 × 0.060 × v²

5.9= 0.5 × 0.060v²

5.9= 003v²

v²= 5.9/0.03

v²= 196.66

v= √196.66

v= 14 m/s

Hence the velocity of the egg before it strikes the ground is 14 m/s

brainly.com/question/2084569?referrer=searchResults

3 0
3 years ago
In a home's central heating system, when the room temperature measured by the thermostat reaches a set value, the thermostat sen
shutvik [7]
These actions are an example of feedback.
Given that the room has reached the desired temperature, there is no more need for it to be heated, at least until the temperature drops a bit. This is why the thermostat sends feedback about this situation to the heater, which immediately switches off until it is needed again.
3 0
3 years ago
Read 2 more answers
A plane took 7 hours to travel 2020 km. For the first 4 hours,
kicyunya [14]

Answer:

-6.6 km/h

Explanation:

In 7hr plane travelled 2020km;

For the first 4hr the average speed was 310km/h;

d=st, s=d/t;

Distance covered in first 4h is d = 310km/h×4h = 1240km;

See the image attached for further solution

8 0
3 years ago
Read 2 more answers
A 1000-kg car traveling at 70 m/s takes 3 m to stop under full braking. the same car under similar road conditions, traveling at
azamat
We assume a=const (acceleration is constant. We apply the equation
v^2=v0^2+2as where s is the distance to stop v=0(m/s). We find the acceleration from this equation
a=-v0^2/(2s)=-70^2/(2*3) =-816.7 (m/s^2)&#10;
We know the acceleration, thus we find the distance necesssary to stop when initial speed is v=140 (m/s)
s=-v0^2/(2a) =140^2/(2*816.7)=12 (m)

5 0
3 years ago
Other questions:
  • what is the potential energy of the ball when it gets to its maximum height just before falling back to the ground​
    14·1 answer
  • The light bulb converts electrical energy into light and ____. A) chemical B) electromagnetic C) heat D) nuclear
    15·2 answers
  • What percent of 24 is 18 set up a percent proportion and solve
    9·2 answers
  • What is the average acceleration during the time interval 0 seconds to 10 seconds?
    12·1 answer
  • As a sample of water is heated, the energy is used to overcome the attractions between the molecules so that they are no longer
    6·2 answers
  • When you urinate, you increase pressure in your bladder to produce the flow. For an elephant, gravity does the work. An elephant
    12·1 answer
  • A 5 kg bucket is lifted from the ground into the air by pulling in 10 meters of rope with linear density of 2 kg/m at a constant
    7·1 answer
  • Determine the specific heat of a certain metal if a 450 gram sample of it loses 34 500 Joules of heat as its temperature starts
    9·1 answer
  • When a 2.40-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.92 cm.(a) Wh
    10·1 answer
  • Are stairs a type of inclined plane?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!