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Neporo4naja [7]
3 years ago
14

Inertia is responsible for :

Physics
2 answers:
DENIUS [597]3 years ago
8 0
B. the reason we must wear seat belts
Arisa [49]3 years ago
8 0
B) we need seat belts to keep us in the car just in case a car breaks suddenly or hits another.

Remember— an object in motion will remain in motion until acted on be another outside force acts upon it
In this case the seat belt is the outside force.

An object will remain at rest until an outside force acts upon it.

Hope this helps!
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Electrons (mass m, charge –e) are accelerated from rest through a potential difference V and are then deflected by a magnetic fi
adell [148]

Answer:

r=\dfrac{1}{B}\sqrt{\dfrac{2Vm}{e}}

Explanation:

Let m and e are the mass and charge of an electron. It is accelerated from rest through a potential difference V and are then deflected by a magnetic field that is perpendicular to their velocity. Let v is the velocity of the electron. It can be calculated as :

\dfrac{1}{2}mv^2=eV

v=\sqrt{\dfrac{2eV}{m}}

When the electron enters the magnetic field, the centripetal force is balanced by the magnetic force as :

\dfrac{mv^2}{r}=evB

r=\dfrac{mv}{eB}

or

r=\dfrac{1}{B}\sqrt{\dfrac{2Vm}{e}}

So, the radius of the resulting electron trajectory is \dfrac{1}{B}\sqrt{\dfrac{2Vm}{e}}. Hence, this is the required solution.

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3 years ago
A perfectly<br> collision occurs when two objects stick together and kinetic e
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Answer:

An inelastic collision is one in which objects stick together after impact, and kinetic energy is not conserved. This lack of conservation means that the forces between colliding objects may convert kinetic energy to other forms of energy, such as potential energy or thermal energy.

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4 years ago
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Newton's second law of motion states the relationship of mass, acceleration and force. It states that
sergey [27]

Answer:

C

Explanation:

force equals mass time acceleration

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In the election for class president Rachel received 60 votes and lucas received 10 votes. What is the ratio of the number of vot
Vedmedyk [2.9K]

Answer:

1:7 or 10:70

Explanation:

Lucas gets 10 votes out of the total of 70 votes (Lucas+Rachel votes)

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