Answer:
29.6 kg
Explanation:
Centripetal force = mass × centripetal acceleration
F = m v² / r
88.0 N = m (2.50 m/s)² / 2.10 m
m = 29.6 kg
Answer:
density I believe, air gets compressed when In pressure, so the air would have more density
Answer:
1.51×10^58 moles of photons
Explanation:
n = E/hf
E is total energy = 1×10^44 J
h is Planck's constant = 6.634×10^-34 Js/mol
f is frequency of radiation = 1×10^19 Hz (1×10^19 s^-1)
n = 1×10^44/(6.634×10^-34 × 1×10^19) = 1×10^44/6.634×10^-15 = 1.51×10^58 moles of photons
Answer:
If a ray of light hits the surface of a sheet of glass, some light will be reflected by the surface of the glass. However, much of the light will pass through the glass, because glass is transparent. ... This 'bending of a ray of light' when it passes from one substance into another substance is called refraction.
Explanation:
Hello,
To start off, Your answer is Refraction.Refraction is always accompanied by a wavelength. So that is why the wave moves from one medium to another.
Hope this helps