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Luba_88 [7]
3 years ago
15

Sentences and facts for the laws of motion.

Physics
1 answer:
Bogdan [553]3 years ago
4 0
Newton's laws of motion are three physical laws that together have laid the foundation for classical mechanics. They describe the relationship between a body and the forces acting upon it, and its motion in response to said forces. Can be summarized as:

1) First law: When viewed in in inertial sense, an object either remains at rest or continues to move at a constant velocity, unless acted upon by an external force. For example, a bike once set into motion does not stop without the application of friction forces.
2) Second law: F = ma. The vector sum of the forces F on an object is equal to the mass m of that object multiplied by the acceleration vector a of the object.
3) Third law: When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.
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In any energy transformation, there is always some energy that gets wasted as non-useful heat. True or False.
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Read 2 more answers
What is 5kg fall from 2.1 meter using g=9.8m/s
lakkis [162]

Answer:

103.J

Explanation:

Given data

Mass= 5kg

Height= 2.1m

g=9.81m/s^2

Required

The potential energy

PE= mgh

substitute

PE= 5*9.81*2.1

PE=103.J

8 0
2 years ago
As a dilligent physics student, you carry out physics experiments at every opportunity. At this opportunity, you carry a 1.39-m-
grin007 [14]

Answer:

The strength of magnetic field is 6.21 \times 10^{-5} T

Explanation:

Given:

Length of rod l = 1.39 m

Velocity v = 3.37 \frac{m}{s}

Induced emf = 0.291 \times 10^{-3} V

According to the faraday's law

Induced emf = Blv

We have to find strength of the magnetic field,

   B = \frac{0.291 \times 10^{-3} }{1.39 \times3.37}

   B = 6.21 \times 10^{-5} T

Therefore, the strength of magnetic field is 6.21 \times 10^{-5} T

7 0
3 years ago
What are the two reactants in this equation?
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Answer:

Whats the equation to your question?

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