Some examples of insulators are plastic, glass and rubber.
A. Translucent because it’s shows a little light on the inside and looks dark on the outside
Answer:
Check the explanation
Explanation:
Kindly check the attached image below to see the step by step explanation to the question above.
Answer:
3740N
Explanation:
The magnitude of the net force acting on an object is equal to the mass of the object multiplied by the acceleration of the object as shown in the formula below. If the net force acting on an object is zero, then the object is not accelerating and is in a state that we call equilibrium.
The formula for force is force = mass x acceleration.
To find mass, simply divide the force by the acceleration
acceleration=1.1m/s²
Mass=4500−760=3400N
Therefore, Mass x acceleration
=1.1m/s²x3400=3740N
As the speed of wave decreases, the wavelength of the wave decreases.
<h3>Refraction</h3>
We know that as a wave travels from one medium to another its speed decreases depending on if the first medium is less dense than the second medium or increases depending on if the first medium is more dense than the second medium. This is known as refraction
Now, we know that the speed of a wave v = fλ where
- f = frequency and
- λ = wavelength. Since f is constant, v ∝ λ.
The ratio of the speed in medium one to speed in medium two is called the refractive index of medium 1 to 2.
<h3>Explaining the diagram</h3>
From the diagram, we see that the wavelength in medium 1 is longer than that in medium 2. Since wavelength and speed are proportional, so the speed in medium 1 is also greater than the speed in medium 2.
So, As the speed of wave decreases, the wavelength of the wave decreases.
Learn more about refraction here:
brainly.com/question/25758484
