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lys-0071 [83]
3 years ago
12

What is short circuit​

Physics
2 answers:
garik1379 [7]3 years ago
8 0
An electrical circuit in a device of lower resistance than that of a normal circuit, especially one resulting from the unintended contact of components and consequent accidental diversion of the current.
Marizza181 [45]3 years ago
3 0

Answer:

A short circuit is an electrical circuit that allows

Explanation:

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Why are fossil fuels like coal, oil, and natural gas<br> called nonrenewable resources?
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After they are all used up they can’t be renewed or used anymore.
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4 years ago
student built a simple heat engine that could lift masses. If the heat engine takes in 300 J of heat and loses 50 J to the envir
k0ka [10]

Answer:

So it will lift the mass by h = 17 m

Explanation:

As per energy conservation we know that

Q_1 = W + Q_2

here we know that

Q_1 = 300 J

Q_2 = 50 J

now we have

W = 300 - 50

W = 250 J

so work done by the engine is 250 J

now we have

W = mgh

250 = 1.5 \times 9.81 \times h

h = 17 m

4 0
3 years ago
You push a desk with 230 N, but the desk doesn't move due to its friction with the ground. What is the magnitude of the friction
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force \:  = friction \: based \: on \: newtons \: third \: law \\ \: f =  |230|  = 230 \: newton \\ this \: is \: why \: the \: desk \:  \\ doesnt \: move...

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How do whales bats and dolphins use echolocation?
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A bicycle is traveling with a speed of 12 m/s. The cyclist hits the brakes reducing the speed to 4 m/s in a time of 4.8 seconds.
Annette [7]

So, the acceleration of the bicycle is approximately <u>-1.67 m/s²</u> or it can be said to be decelerating approximately <u>1.67 m/s²</u>.

<h3>Introduction</h3>

Hi ! Here I will help material about linear motion changes regularly, which is where you will hear a lot of the term acceleration. Acceleration occurs when an object's speed increases in a certain time interval. Acceleration can be negative which is called deceleration. The relationship between acceleration with velocity and time is manifested in the equation:

\boxed{\sf{\bold{a = \frac{v_2 - v_1}{t}}}}

With the following conditions :

  • a = acceleration (m/s²)
  • \sf{v_2} = object's final velocity (m/s)
  • \sf{v_1} = object's initial velocity (m/s)
  • t = interval of the time (s)

<h3>Problem Solving </h3>

We know that :

  • \sf{v_2} = object's final velocity = 4 m/s
  • \sf{v_1} = object's initial velocity = 12 m/s
  • t = interval of the time = 4.8 s

What was asked :

  • a = acceleration = ... m/s²

Step by step :

\sf{a = \frac{v_2 - v_1}{t}}

\sf{a = \frac{4 - 12}{4.8}}

\sf{a = \frac{-8}{4.8}}

\boxed{\sf{a \approx -1.67 \: m/s^2}}

So, the acceleration of the bicycle is about -1.67 m/s² or it can be said to be decelerating around 1.67 m/s².

8 0
3 years ago
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