Answer:
Explanation:
I just took the quiz on edge2020
Answer:
B
Explanation:
A)
amplitudes
B)
wave speeds
C)
wavelengths
D)
polarization
Different colors after reflection appear due to the different wavelengths of light. Therefore, option C is correct.
The wavelength of the light can be defined as the distance between the two points in phase w.r.t. each other such as two crests or troughs on a wave. The frequency of the light is the number of oscillations of a wave in one second and has S.I. units of per second or hertz.
The expression between frequency (ν), wavelength (λ), and speed of light (c) is:
c = νλ
A wave moving at a fixed wave speed has a wavelength that is inversely proportional to the frequency therefore, the waves with higher frequencies have shorter wavelengths, while lower frequencies have higher wavelengths.
The speed depends upon the medium as it propagates. In particular, the speed of light in a particular medium is less than in a vacuum, therefore the same frequency will have a shorter wavelength.
When the light is reflected the colors are formed as due to different wavelengths.
Learn more about wavelength and frequency, here:
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Answer:
Protozoa, Algae and Fungus-like protists. And by how they obtain nutrition.
Explanation:
To find volume you just divide mass by density. (15/3) and you get 5
Answer: 25 N
Explanation:
the fist hit by the black belt Alice in the Taekwondo has been given to have a mass of 0.5 kg which acquires a velocity of 5 m/s in a time of 0.1 sec, therefore, the average net force which is being applied to the fist can be calculated by the following method,
Given, mass m=0.5 kg, velocity v=5 m/s, time t=0.1 sec
As we know that, acceleration
Thereby,
Answer:
25N
Explanation:
Find acceleration first
A=v-u/t
acceleration = 5/0.1s =50m/s^2
then find net force using f=mass x acceleration, which iin this case is 25N
Pendulum
Bow and Arrow
Roller Coaster
Answer:
Neglecting, air resistance, friction and breaking, all the condition has conservation of mechanical energy.
Explanation: