Answer:
4s
Explanation:
Using the formula of motion as follows:
V = u + at
Where;
V = final velocity (m/s)
U = initial velocity (m/s)
a = acceleration (m/s)
t = time (s)
Based on the provided information, v = 160m/s, u = 100m/s, a = 15m/s², t = ?
V = u + at
160 = 100 + 15t
160 - 100 = 15t
60 = 15t
t = 60/15
t = 4seconds.
Therefore, the time it takes for the plane to complete this increase in speed is 4s.
Answer:
The angle between the electric field and the axis of the filter is 54⁰
Explanation:
Apply the equation for intensity of light through a polarizer.
where;
I is the intensity of the transmitted light
I₀ is the intensity of the incident light
θ is the incident angle
If only 35 % of the intensity of a polarized light wave passes through a polarizing filter, then the ratio of the intensity of the transmitted light to that of the intensity of the incident light is given by;
Therefore, the angle between the electric field and the axis of the filter is 54⁰
Answer:
1. The law of universal gravitation is , where F=force, G=gravitational constant, m=mass, r=radius. It's an inverse square law, because there's a squared term in the denominator. It's really neat because it's basically the same thing as Coulomb's law () but just with big things instead of small ones!
2. Ptolemy was a Greek mathematician who believed in a geocentric model, or that the earth was the center of the universe and the sun revolved around it. Copernicus believed in a heliocentric model, which is exactly the opposite. Of course we now agree with Copernicus. Both scientists used extensive proofs and logic to come to their conclusions, but ultimately Copernicus was correct.
3. The first image, Path A, shows how the ball will fly. This is because of Newton's laws: the object will keep going in the direction it was last going. The force is not circular; the force is basically tangent to the circle at every point. Just try doing this with your bike (I do this in my driveway) by spinning in circles, then just stopping: you will go along Path A. Also, this is the centripetal force, which says that the force is towards the inside; this causes the ball to go outwards when you let go.
If the wall doesn't move, its mean that <u>the work he did is 0 J</u>.
<h3>Introduction</h3>
Hello my friend ! Here, I will help you. Alright, before it, I will to introduce to you about work (physics). In the world of physics, <u>work is the amount of force exerted to cause an object to move a certain distance from its starting point</u>. The amount of work will be proportional to the increase in force and increase in displacement. Amount of work can be calculated by this equation :
With the following condition :
- W = work (J)
- F = force (N)
- s = shift or displacement (m)
<h3>Proof</h3>
How about a stationary object like a wall pushed by Mr. Avalos ? Yes it is 0 J. Let's prove it!
Give :
- F = force of Mr. Avalos = 150 N
- s = displacement of wall = 0 m
- t = interval of the time = 60 s
Asked : W = work = ... J
Proven :
(Q.E.D)
<h3>See More :</h3>
The word friction is 4 across and 8 up in the bottom left corner. The word is shown as:
F
R
I
C
T
I
O
N