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Evgen [1.6K]
3 years ago
15

S/REF No. Date If the load distance of a level is 20 cm and effort distance is 6ocm, calculate the amount of effort required to

lift a load 200 N.​
Physics
1 answer:
andrew11 [14]3 years ago
7 0
The answer is 602 cause I added
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3 years ago
Wavelength of blue photons 495 nm, what is the frequency? and what is the energy?
inessss [21]

Answer:

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Explanation:

Frequency: We knew that the speed of a wave is its wavelength(λ)* frequency(f, in Hz).  By the wave-particle duality we know we can calculate the frequency of light in the same way. So, c=495nm *f, f=c/495nm=> (299,792,458 m/s) / (4.95*10^-7 m)

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3 0
3 years ago
What happens when electromagnetic waves cause a disturbance in electric
Leviafan [203]

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c

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The density of water is 1.00 g/cm3. What is its density in kg/m3?
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1 g = 1 ÷ 1000 kg
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