Given: Plank's constant h = 6.626 x 10⁻³⁴ J.s
Speed of light c = 2.998 x 10⁸ m/s
Wavelength λ = 500 nm convert to meter = 5 x 10⁻⁷ m
Required: Energy E =?
Formula: E = hc/λ
E = (6.626 X 10⁻³⁴ J.s)(2.998 X 10⁸ m/s)/5 x 10⁻⁷ m
E = 3.97 X 10⁻¹⁹ J or in termS of electron volt
E = 2.48 eV
Answer:
B. The weight of rock 1 will be the greater than the weight of rock 2
Explanation:
We are told that the mass of rock 1 is greater than the mass of rock 2.
Now, weight is given by;
W = mg.
g is constant. Thus means that weight of rock 1 will be greater than weight of rock 2.
Helium, Neon, and Xenon are all part of the same column on the Periodic Table. Such a column is referred to as a Group, because they have the same number of valence electrons in their outermost shell. Hope this helps!
Answer:
Explanation:
The area of the outlet can be found by means of the Principle of Mass Conservation. A diffuser works usually as a steady state system:
The area of the outlet is:
B because usually Asians have round hair shafts , because Caucasians have oval hair shafts