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Phoenix [80]
3 years ago
11

A device that increases or decreases the voltage of alternating current is a

Physics
2 answers:
wariber [46]3 years ago
9 0
The simplest device to accomplish that process is a transformer. 
Pachacha [2.7K]3 years ago
6 0

Answer: The correct answer is "transformer".

Explanation:

Transformer: It is a device which transfers energy between two or more circuit.

It converts the voltage from low to high or high to low.

There are two types of transformers: Step-up transformer and Step-down transformer.

Step-up transformer: It is used to convert the voltage of alternating current from low voltage to high voltage.

Step-down transformer: It is used to convert the voltage of alternating current from high voltage to low voltage.

Therefore, a device that increases or decreases the voltage of alternating current is a transformer.

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Ya'll please I need help only on #5 Its confusing<br><br> (Grade 10 Physics, Potential Energy)
skad [1K]

Answer:

Potential energy = work done on the spring

= Force x displacement

= 15 N x 0.025 m

= 0.375 J

3 0
3 years ago
Why are the surface features of the moon essentially unaltered since youth
zmey [24]

Because there is no wind, rain, snow, sleet, or people to wear them down,
and no rivers, streams, or floods to cover them over.

8 0
3 years ago
A hobby rocket reaches a height of 72.3 m and lands 111 m from the launch point with no air resistance. What was the angle of la
Deffense [45]

Answer:

The angle of launch is 52.49 Degree.

Explanation:

The Range R and Height H of a thrown object is calculated using the formula,

R=V₀² sin(2φ)/g

H=V₀²sin²(φ)/g

From these equations it can be written,

V₀²=R g/ sin(2φ)

V₀²=H g/ sin²(φ)

These values are equal so it can be written by equating these equations,

R g/sin(2φ)=H g/sin²(φ)

tan(φ)= 2H/R

Given H=72.3 m and R=111 m, the angle of launch is,

tan(φ)= 2*72.3/111

φ= 52.49 Degree.

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7 0
2 years ago
A measurement of a change<br> in distance over time
aleksandrvk [35]

Explanation:

<h2>Speed is the rate of change of distance with time.</h2>
7 0
3 years ago
Provide two ways that objects can become charged
kap26 [50]

Answer:

friction, conduction and induction

Explanation:

Had it in class I had it correct hope this helps.

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