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Salsk061 [2.6K]
3 years ago
11

Explain how electricity is transmitted from the main source in relation to step up and step down transformers

Physics
1 answer:
puteri [66]3 years ago
7 0

Answer:

The electricity produced from the main source which is an electrical generator which is usually close a remote abundant source of natural energy or at a distant location away from the residential areas where the electricity is used

The step up transformer is  the device used to raise the voltage and therefore lower the current of the of incoming generated electricity before it is transmitted through high tension cables so that the energy loss from source to destination is reduced and the electricity generated can applied where needed

However, the high voltage transmitted along power lines to reduce energy loss cannot be used as it is by the consumer, partly because it is very harmful in the event of an electric shock and can easily damage household electrical devices, therefore, the high voltage in the power lines is reversed back or lowered into voltages which can be used to power electrical devices in buildings with the use of a step-down transformer

Explanation:

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Match these items.
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Explanation :

(1) Involuntary muscles are the muscles that are not controlled by our will.

(2) Tendons are the connective tissues that join the muscle to bones. Tendons are tissues that have fibers.

(3) Cardiac muscle is also involuntary muscles. For example heart muscle. It shows contraction and relaxation throughout life.

(4) Voluntary muscle is the muscles that are not controlled by our will.  

(5) Biceps are the arm muscles.

Hence, this the required explanation as per options.

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3 years ago
Any four difference between velocity and acceleration​
pychu [463]

Answer:

https://physicsabout.com/acceleration-and-velcoity/

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What are flask used for primarily in the lab
Vlad [161]
To measure the fluids that you will be using such as water or other chemicals if your mixing them and they have to be precise measurements
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3 years ago
What is the lateral surface area of a cylinder with height of 7 m and a base diameter of 4 m (to the nearest whole number)?
yuradex [85]
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8 0
3 years ago
A 980 kg roller coaster cart is traveling along a track at 17 m/s before it rolls down a 30 m tall hill (Point A). What will be
MrRissso [65]

The kinetic energy halfway the hill is 2.86\cdot 10^5 J

Explanation:

If there are no friction forces acting on the cart, we can apply the law of conservation of energy: the mechanical energy of the cart (which is the sum of potential energy + kinetic energy) must be conserved. So we can write:

U_A +K_A = U_B + K_B

where

U_A=mgh_A is the initial potential energy, at point A, with

m = 980 kg (mass of the cart)

g=9.8 m/s^2 (acceleration of gravity)

h_A = 30 m (height at point A)

K_A=\frac{1}{2}mv_A^2 is the initial kinetic energy, at point A , with

v_A=17 m/s (velocity at point A)

U_B=mgh_B is the final potential energy, at point B, where

h_B = 15 m (height at point B)

K_B=\frac{1}{2}mv_B^2 is the final kinetic energy, at point B, where

v_B is the velocity at point B

Here we are interested in finding K_B, so by re-arranging the equation and substituting we find:

K_B = U_A+K_B-U_B = mg(h_A-h_B)+\frac{1}{2}mv_A^2=(980)(9.8)(30-15)+\frac{1}{2}(980)(17)^2=2.86\cdot 10^5 J

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

8 0
3 years ago
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