E = hc/(lamda)
The lamda symbol is wavelength, which this site does not have. I can represent it with an "x" instead.
Plancks constant, h = 6.626×10^-32 J·s
Speed of light, c = 3.00×10^8 m/s
The energy must be greater than or equal to 1×10^-18 J
1×10^-18 J ≤ (6.626×10^-32 J·s)*(3.0×10^8 m/s) / x
x ≤ (6.626×10^-32 J·s)*(3.0×10^8 m/s) / (1×10^-18 J)
x ≤ 1.99×10^-7 m or 199 nm
The wavelength of light must be greater than or equal to 199 nm
Hi! I hope this helps, here’s the answer.
<span>2NH3 + 3/2O2 --> N2 +
3H2O </span><span>
<span>NH3 + 3/4O2 --> 1/2N2 + 3/2H2O </span></span>
<span>Here, the sign of deltaS^0 is one molecule (^0) thus, the
coefficient of NH3 should be ONE.</span>
Answer:
I have an image that should help you!
Explanation:
Hope this helps you!
Hi,
The answer is gravity.
The bigger the object is the more are other smaller objects attracted to it. The opposite of gravity is dark energy which keeps objects apart and accelerates expansion of the universe.
Hope this helps.
r3t40
Answer:
A.
Explanation:
The amount of mass always stays the same, matter cannot be created nor destroyed, it can only change forms. Thus, the answer is A.