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2 years ago

1. A car starting from rest accelerates uniformly at 3

Physics

1 answer:

amid [387]2 years ago

5 0

The car's final speed in m/s after the acceleration is 30.

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<u>Given the following data:</u>

Initial velocity, U = 0 m/s (since the cars starts from rest)

Time, t = 10 seconds

Acceleration, a = 3 meter per seconds square.

To find the car's final speed in m/s after the acceleration, we would use the first equation of motion;

Mathematically, the first equation of motion is given by the formula;

$V = U + at\\\\V = 0 + 3(10)$

<em>Final speed, V </em><em>=</em><em> 30 m/s</em>

Therefore, the car's final speed in m/s after the acceleration is 30.

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2 years ago

A 290-turn solenoid having a length of 32 cm and a diameter of 11 cm carries a current of 0.30 A. Calculate the magnitude of the

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The magnitude of the magnetic field inside the solenoid is 3.4×10^(-4) T.

To find the answer, we need to know about the magnetic field inside the solenoid.

<h3>What's the expression of magnetic field inside a solenoid?</h3>

Mathematically, the expression of magnetic field inside the solenoid= μ₀×n×I

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1 year ago

The angle of deflection shows the amount of electric force on each balloon. A greater force causes the balloon to deflect to a g

UNO [17]

Answer:

Hello the options to your question is missing attached below are the missing options

Electrical forces are symmetrical, The electric repulsion of the Balloons is equal because electric forces between two objects are always symmetrical
The electric forces are equal in this case because both balloons had the same amount of electric charge

Answer :

Electrical forces are symmetrical, The electric repulsion of the Balloons is equal because electric forces between two objects are always symmetrical

Explanation:

The Balloons have the same amount of force exerted on them, because Electrical forces are symmetrical, The electric repulsion of the Balloons is equal because electric forces between two objects are always symmetrical, therefore the two Balloons are deflected to the same angle

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Answer: 0.15 m/s

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2 years ago

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