Physics College

Name that Newtonian law.

You exert a net force of 4 N to the right on an object with a mass of 8 kg, the object will accelerate at 0.5 m/s2 to the right.

A hockey puck slides on ice.

My car hits a mosquito, and the mosquito hits back, equally.

Mrs. Hankinson has a zero total external forces acting on her - she keeps moving at a constant velocity, if she is already moving.

Answers

Answer 1

You exert a net force of 4 N to the right on an object with a mass of 8 kg, the object will accelerate at 0.5 m/s2 to the right. Newton second law

A hockey puck slides on ice. Newton's first law

My car hits a mosquito, and the mosquito hits back, equally. Newton's third law

Mrs. Hankinson has a zero total external forces acting on her - she keeps moving at a constant velocity, if she is already moving. Newton's first law

What is the Newton law?

We know that according to the Newton law, the reason for motion is force. As such the force that is exerted on a body is the reason why the object would move from one point to the next.

There are three laws of motion that was put forward by Newton. The first law explains the relationship between force and the inertia of an object. The second law addresses the relationship between rate of change of impressed force while the third force deals with the concept of action and reaction.

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Related Questions

Explain the difference between Pavlov's classical Conditioning, and Skinner's Operant
Conditioning, give examples to illustrate how behavior can be learned according to each
one of those conditioning. Explain the example after explaining the process.

Answers

Skinner's Operant Conditioning focus stressed that the  consequences of a behavior will indicate if there is  possibility of it being repeated and also  the human behavior  can be attributed to something in a person's environment.

Pavlov's classical Conditioning stressed that two stimuli can be linked  together  so that there can be new learned response in indivisuals .

Example of Pavlov's classical Conditioning  is that a dogs could be conditioned to salivate at the sound of a bell if it was programmed to ring at the time of food.

Example of Skinner's Operant Conditioning is that of negative reinforcement which was demonstrated by placing a rat in  Skinner box  which then subjected to unpleasant electric current  and make it to experience some discomfort.

What is Classical conditioning?

Classical conditioning can as well be described as the Pavlovian or respondent conditioning which is the learning that do take place when two stimuli are linked together  and they can bring about new learned response in a person or animal.

Operant conditioning  was the one that stressed that the cause of human behavior  can be linked to the something in a person's environment.

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Part A
Choose the correct free body diagram for the case when the ball is at its lowest point

Answers

The correct free body diagram for the case when the ball is at its lowest point is tension pointing upwards and weight of the object pointing downwards.

What is the tension in the string at the lowest point in circular path?

The tension in the string at the lowest point in a circular path is equal to weight added to centripetal force required.

Mathematically, the formula for the tension in the string is given as;

T = W + ma

where;

W is the weight on the stringm is the mass of the objecta is the acceleration of the object

At the lowest point the acceleration of the object is zero, a = 0. The new equation becomes the following;

T = W

The free body diagram of the tension and the weight of the object is given as;

                                ↑ T

                                Ф

                                ↓ W

Thus, the correct free body diagram consist of the tension force pointing upwards and the weight of the object pointing downwards.

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11. Why do the lights in your home come on almost instantaneously when you turn, on the switch?

A - When the circuit is completed, there is a rapid rearrangement of surface charges in the circuit.
B - Charges store energy. When the circuit is completed, the energy is released.
C - Charges in the wire travel very fast.
D - The circuits in a home are wired in parallel. Thus, a current is already flowing.
E - Charges in the wire are like marbles in a tube. When the circuit is completed, the charges push each other through the wire.

Answers

Answer:

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