PHYSICS HIGH SCHOOL

Which of the following is the tendency of an object to maintain its state ofmotion?
velocity
O acceleration
O inertia
O force
A net force of 6.8 N accelerates a 31 kaccontor

Answers

Answer 1
Answer:

Answer:

O inertia

Explanation:

The tendency of a body to maintain its state of motion is inertia.

Inertia is the tendency of a body to remain at rest or in constant motion.

  • According to newtons first law of motion "a body will remain in its state of rest or constant motion unless acted upon by an external force".
  • The tendency of the body to remain in a state of rest or of constant motion is the inertia.
  • Such a body will not want to accelerate or change motion.
Answer 2
Answer:

Final answer:

The tendency of an object to maintain its state of motion is known as inertia. It's a concept based on Newton's First Law of Motion

Explanation:

The tendency of an object to maintain its state of motion is called inertia. This is a fundamental concept in physics, based on Newton's First Law of Motion, which states that an object will remain at rest or move in a straight line at a constant speed unless acted upon by a net external force. While velocity, acceleration, and force are also involved in motion, inertia specifically is the property that defines an object's resistance to any change in its movement.

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The principal limitation of wind power is unpredictability. Please select the best answer from the choices provideda. True
b. False

Answers

The correct answer is A: True. Although the ability to forecast weather has increased over the years, the ability to predict when and how much wind will occur at any given time and place is difficult. Weather conditions are subject to constant change and while some areas are known to have more wind than others, there is no guarantee about how much wind there will be as weather patterns vary in consistency.

Answer:

A. True

Explanation:

If the index of refraction of a medium is 1.4 determine the speed of light in that Medium

Answers

Speed of light in the medium = 2.14×10⁸ ms⁻1.

The refraction of a medium = 1.4

We know that speed of light in air= 3×10⁸ m/s

What is refractive index?

  The ratio of the speed of the light in air to the speed of the light in  medium  is defined as refractive index.

       Refractive index =  speed of light in air  ÷  speed of light in medium

              1.4     =      3×10⁸ ÷  speed of light in medium

      speed of light in medium =  3×10⁸  ÷  1.4

                                                 =  214285714.2857 km/s

Hence, the speed of light in that medium is =  214285714.2857 km/s

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The speed of light in any medium is

     (speed of light in vacuum)
divided by
     (index of refraction of the medium).

For the medium you're describing, it's

       c / 1.4  = about  0.714 c  =  214,137,470 m/s .

What process is mostly responsible for the blue appearance of the sky

Answers

Answer:reflection by dust particles in air

A baseball of mass 250g, pitched with a speed of 40m/s is caught by the catcher, whose glove moves backward 0.25m while stopping the ball. What was the kinetic energy of the ball before it was caught?

Answers


I don't think we care about the motion of the catcher's glove. 

The mass of the ball is 0.25kg and its speed is 40m/s. 
So its kinetic energy is . . .

     KE = 1/2 (mass) (speed)² =
 
               (0.125 kg) (40m/s)² =

                        200 kg-m²/s² = 200 joules .
The kinetic energy is =.5mv^2 so the amount the glove moved beforehand is irrelevant and typically this is measured in Kgm/s so 250g is .25kg and v^2 is 40x40 so 1600 lastly 1600x.5x.25 is 200kgm/s :)

When two objects with electrical charges interact, which affect the strength of that interaction? Choose all answers that are correct.

A.
amount of charge

B.
how near the objects are to each other

C.
climate conditions

D.
the force of gravity

Answers

The two objects with electrical charges interact, which affect the strength of that interaction amount of charge. The answer is letter A. The rest of the choices do not answer the question above. 

The more particles a substance has at a given temperature, the more thermal energy it has.

Answers

The statement 'The more particles a substance has at a given temperature, the more thermal energy it has' is true. The kinetic molecular theory of gases has three main laws and one of them is the average kinetic energy of the particles in a gas. The average kinetic energy of the gas particles is the behavior and movement it does in the surroundings. It is directly proportional to temperature wherein if you increase the temperature, the kinetic energy of a particle also increases. It will also decrease its movement or its kinetic energy if the temperature lowers. 
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