Answer:
They fold to create ridges and valleys perpendicular to the direction to which pressure is applied.
Answer: speed of light in solid = 1.88 * 10^8 m/s
Frequency is constant
Explanation: The relationship between the velocity of light wave and wavelength is given by the formulae below
V = fλ
During refraction, the frequency of light is constant, thus we have that
V = kλ which implies that velocity is proportional to wavelength.
Hence, we have that
v1/ λ1 = v2/ λ2
Where v1 = velocity of light in air = 3 * 10^8 m/s
v2 = velocity of sound in solid
λ1 = wavelength of light in air = 670nm
λ2 = wavelength of light in solid = 420nm
By making v2 subject of formulae, we have that
v2 = v1 * λ2/ λ1
v2 = 3 * 10^8 * 420nm/ 670nm
v2 = 3 * 10^8 * 0.6268
v2 = 1.88 * 10 ^8 m/s
b)
During refraction the frequency of light wave is constant this is because light consist of photons which has energy. it energy needs to be constant and for energy (E=hf) to be constant, frequency would be constant too.
Hello! The 7 inches on a blueprint represents the actual length of 38.5 feet. To find the scale on the blueprint, let's divide the actual length by the amount of inches on the blue print. 38.5 / 7 is 5.5. There. 1 in = 5.5 ft.
Explanation:
Inertia is a physical quantity that expresses the tendency of body to be in a state of rest or continue with uniform motion along a straight path.
- Newton's first law of motion is famed as the law of inertia.
- The law states that "an object will continue in a state of rest or along a path with uniform motion unless acted upon by an external force".
- The reluctance of a body to change its state is simply inertia.
Inertia of a body is function of the innate force it possesses that helps its to resist change.
Inertia is often a function of the mass or the amount of substance it contains.
Sentence use:
Despite the raging storm the rock boulder remain fixed due to a high inertia.
learn more:
Inertia brainly.com/question/691705
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Answer:
Happiness is a non-matter.
Explanation:
Happiness is an emotion, not an item. You can not hold it. You can feel it emotionally.
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