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3 years ago

In which direction does a Newton’s third law reaction force act?

Physics

2 answers:

Alinara [238K]3 years ago

8 0

<h2>Answer:</h2>

<u>The correct choice is </u><u>B. In the opposite direction from the action force </u>

<h2>Explanation:</h2>

According to Newtons 3rd law every action has a reaction which is equal in magnitude but opposite in the direction. The direction of the force on the first object is opposite to the direction of the force on the second object. In other words all forces between two objects exist in equal magnitude and opposite direction.

Mathematically

FA = −FB

Norma-Jean [14]3 years ago

6 0

<h2>Hello!</h2>

The answer is: B. In the opposite direction from the action force.

Newton's third law states that there is always a force acting in the opposite direction from the first applied force to an object, the second force will have the same magnitude but the opposite direction.

For example, when we sit on a chair, there is a force applied on the chair (our weight), at the same time, there is an equal force but with opposite direction going from the chair to us.

There are other two laws established by Newton, and they are related to the object's movement, acceleration, forces, masses, and velocity.

Have a nice day!

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Answer:

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3 years ago

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Sergio [31]

Answer:

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Explanation:

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3 years ago

A wire is formed into a circle having a diameter of 10.0 cm and is placed in a uniform magnetic field of 3.00mT . The wire carri

mojhsa [17]

The maximum torque on wire is 0.12 x $10^{-3}$ N-m.

We have current carrying wire in a form of a circle placed in a uniform magnetic field.

We have to find the maximum torque on the wire.

<h3>What is the formula to calculate the torque on a wire placed in a uniform magnetic field.</h3>

The torque on a wire placed in a uniform magnetic field is given by -

$$\tau = IAB\;sin\theta$

According to the question, we have -

Diameter of wire (D) = 10 cm

Therefore -

Radius of wire (r) = 5 cm = 1/20 meter.

Magnetic field (B) = 3 mT = 3 x $10^{-3}$ T

I = 5 A

Using the formula for torque -

$$\tau = IAB\;sin\theta$

For maximum torque -

$\theta$ = 90

Therefore -

$$\tau = IAB$ = 5 x 3.14 x $\frac{1}{20}$ x $\frac{1}{20}$ x 3 x $10^{-3}$ = 0.12 x $10^{-3}$ N-m.

Hence, the maximum torque on wire is 0.12 x $10^{-3}$ N-m.

To solve more questions on Torque on wire, visit the link below-

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2 years ago

In a closed system, what happens to the total energy of the system as energy conversion takes place?

scoundrel [369]

Answer:

In a closed system, the total energy is conserved or remains the same as energy transformations take place.

Explanation:

The law of conservation of energy states that energy cannot be created or destroyed but can be transformed from one form to another.

This law of conservation of energy applies only to a closed system. A closed system is a system which does not exchange energy with its surroundings. All forms of energy conversions occurring within a closed system does not result in an increase or decrease of the total energy of the system, rather, energy remains constant. For example, the universe is a closed system in that all forms of energy conversions occurs within it and energy is not exchanged with an external environment. However, the earth is not a closed system as some of the energy it receives from the sun can be radiated out into space. Since it's an open system, its total energy can change.

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3 years ago

The quantity that has units kg m2/sec2 is known as a

Svetach [21]

Answer:

Energy

Explanation:

The unit is $kg\ m^2/s^2$ .