1. How are each of Newton’s Laws of motion demonstrated

Physics

1 answer:

stepan [7]3 years ago

5 0

Answer:

Newton's law of inertia - His first law states that every object remains at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. ... This is the first part cited in Newton's first law; "there is no net force on the airplane and it travels at a constant velocity in a straight line."

Newton's law of acceleration - "a net external force changes the velocity of the object. The drag of the aircraft depends on the square of the velocity. So the drag increases with increased velocity."

Newton's law of Action/Reaction - "As a plane flies, the force of the air hitting the plane is always equal and opposite to the force of the plane pushing against the air. The force generated by the engine pushes against air while the air pushes back with an equal and opposite force."

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lord [1]

This is just testing your ability to recall that kinetic energy is given by:

k.e. = ½mv² 

where m is the mass and v is the velocity of the particle. 

The frequency of the light is redundant information. 

Here, you are given m = 9.1 * 10^-31 kg and v = 7.00 * 10^5 m/s. 
Just plug in the values: 

k.e. = ½ * 9.1 * 10^-31 * (7.00 * 10^5)² 
k.e. = 2.23 * 10^-19 J
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kati45 [8]

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