PHYSICS MIDDLE SCHOOL

An airplane is flying at a constant velocity through the air. What is the relationship between the magnitudes of the four forces shown in the diagram? A. L = W; F < D
B. L = W; F = D
C. L = W = F = D
D. L = W; F > D
An airplane is flying at a constant velocity through the - 1

Answers

Answer 1
Answer:

Answer:

(B) L=W; F=D

Explanation:

Since the airplane's velocity is constant, the airplane is not accelerating in any direction. In absence of acceleration, all forces acting on the plane are balanced so that the net forces in the horizontal and the vertical directions are zero. Given the drawing, this implies that

Forward force = Drag force (F=D)

Weight = Lift (W=L)

which corresponds to option (B)

(it is not C because nothing in the text says that the vertical and horizontal components have to have same magnitude)

Answer 2
Answer:

Final answer:

The relationship between the magnitudes of the forces is that lift force is equal to weight force, and drag force is equal to thrust force.

Explanation:

In this scenario, the airplane is flying at a constant velocity, which means that its acceleration is zero. According to Newton's first law of motion, if an object is moving with a constant velocity, the net force acting on it is zero.

Therefore, the relationship between the magnitudes of the four forces shown in the diagram is that the lift force (L) is equal to the weight force (W), and the drag force (D) is equal to the thrust force (F).

So, the correct answer is C. L = W = F = D.

Learn more about Forces here:

brainly.com/question/13191643

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Answers

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What acceleration does a 9 N force produce in a 3 kg object? Make sure to show your work. (The 4 steps)​

Answers

Answer: 3m/s^2

Explanation:

Given that:

Acceleration of object = ?

Force = 9 N

Mass of object = 3 kg

Since force is the product of the mass of an object and the acceleration by which it moves i.e Force = mass x acceleration

9N = 3kg x acceleration

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If a machine could be made that had 100% mechanical efficiency, it would be called an _____________________________.

Answers

It would OUTPUT exactly enough energy to pour back into its INPUT and
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A book with a mass of 5 kg is pushed off a table with the velocity of 2 m/s. What is its momentum? A. 7 kg-m/s
B. 3 kg-m/s
C. 15 kg-m/s
D. 10 kg-m/s

Answers

The momentum of a book with a mass of 5 kg is pushed off a table with a velocity of 2 m/s is option D. 10 kg-m/s.

What is momentum?

  • Momentum is the quantity of motion of a moving body, measured as a product of its mass and velocity.
  • It is the vector quantity. It has both magnitude and direction.
  • In the International System of Units, the unit of measurement of momentum is Kg*m/s.

What is the momentum of a book with a mass of 5 kg is pushed off a table with a velocity of 2 m/s?

  • Formula of momentum = p = mv

Here,

        p = momentum

        m = mass

         v = velocity

  • Here the given mass is 5 and velocity is 2. then,

        p = mv

           =5×2

           =10 Kg*m/s

Hence, the momentum of a book with a mass of 5 kg is pushed off a table with a velocity of 2 m/s is option D. 10 kg-m/s.

To learn more about momentum, refer to: brainly.com/question/26138070

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Momentum=Mass•Velocity

=5 kg•2 m/s

=10 kg-m/s

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Answers


In layman's term: like charges don't attract while opposite charges doelectrostatic forces between point A( which is charged) and point B (which is also charged) are proportional to the charge of point A and point B. there is also something else about this  law that I don't quite remember.

___________________________________________________

Here is the formula:

F = k x Q1 x Q2/d^2

What the formula means:

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Q1 and Q2= amount of charge

d=distance between these two charges

k= Coulombs constant (proportionally constant)

________________________________________________

I think that about covers it and hopefully this helped.
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