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
vladimir2022 [97]
2 years ago
6

Explain why the National Grid uses step-up and step-down transformers.

Physics
1 answer:
stellarik [79]2 years ago
3 0

Answer:

Step-up transformers are used at power stations to produce the very high voltages needed to transmit electricity through the National Grid power lines. These high voltages are too dangerous to use in the home, so step-down transformers are used locally to reduce the voltage to safe levels.

You might be interested in
What properties of Pluto might make scientists think that it is a Kuiper Belt Object?
Nataliya [291]
It is the smallest planet with a bluish color that can probably make it look like a comet
6 0
3 years ago
Which can be observed both on Earth and in an accelerating ship in space that is free from the effect of any gravitational field
Reil [10]

Answer:

  • apples falling from trees
  • people's feet touching the ground
  • sky divers moving toward the ground  
  • balls bending downward after being thrown​

Explanation:

When a space ship is accelerating in space, there is a force known as Inertia that kicks in. Inertia will mirror the effects of gravity on the ship even if there is no gravitational field effect such that anything that would happen where there is gravity, would continue to happen.

This means that apples will fall from trees, people's feet will touch the ground, sky divers will be pulled downwards and balls will bend downwards when thrown as well. These are the same effects expected on earth where gravity pulls things towards the earth's core.

8 0
2 years ago
Read 2 more answers
The distance from Earth to the star Epsilon Eridani is about 10.5 light years. Which of the following statements is true?
Simora [160]
<span>The correct answer is B. - It would take a ray of light 10.5 light years to travel from Earth to Epsilon Eridani, or vice-versa. Using our current technology it would take far longer than 21.0 years for a space ship from Earth to travel that far - I would have to guess many hundreds of years.</span>
4 0
3 years ago
Read 2 more answers
If the atomic mass of Sodium-18 is 18.02597 u, what is the binding energy?
Klio2033 [76]

Answer:

<h3>The binding energy of sodium Na=<em>5.407791×10⁹J</em></h3>

Explanation:

<h3>Greetings !</h3>

Binding energy, amount of energy required to separate a particle from a system of particles or to disperse all the particles of the system. Binding energy is especially applicable to subatomic particles in atomic nuclei, to electrons bound to nuclei in atoms, and to atoms and ions bound together in crystals.

<h2>Formula : Eb=(Δm)c²</h2><h3>where:Eb= binding energy</h3><h3> .Δm= mass defect(kg)</h3><h3> c= speed of light 3.00×10⁸ms¯¹</h3><h2 /><h3><u>Given</u><u> </u><u>values</u></h3>
  • m= 18.02597
  • c=3.00×10⁸ms¯¹

<h3><u>required </u><u>value</u></h3>
  • Eb=?

<h3><u>Solution:</u></h3>
  • Eb=(Δm)c²
  • Eb=(18.02597)*(3.00*10⁸ms¯¹
  • Eb=5.407791*10⁹J

8 0
1 year ago
Help can’t find the answer no where
katen-ka-za [31]

i'm stuck on that question also

5 0
3 years ago
Other questions:
  • How fast must a cyclist climb a 6.0º hill to maintain a power output of 0.25 hp? Neglect work done by friction, and assume the m
    6·1 answer
  • if an object starts at rest and moves 60 meters north along a straight line in 2 seconds, what is the average velocity?
    5·2 answers
  • What does friction oppose
    7·1 answer
  • air passing over an airplanes wing travels ,and therefore exerts pressure.than air traveling beneath the wing.
    9·1 answer
  • What is the potential energy of the system composed of the three charges q1, q3, and q4, when q1 is at point R? Define the poten
    6·1 answer
  • If a charge of 12 C flows past any point along a circuit in _____ seconds, the current at that point would be 3 A.
    15·1 answer
  • Tin shear have longer handles than than the scissor used to cut cloth give reason​
    9·1 answer
  • A stun gun or TASER is designed to put out a few seconds worth of electric pulses that impress a
    15·1 answer
  • 26 POINTS!! will give brailest! can anyone help me? if you can't well, Merry Christmas!
    8·1 answer
  • Venus has a higher average surface temperature than mercury. why?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!