Answer:
19,125
Step-by-step explanation:
nasa pic po ung explanation
Answer:
(1.3×10000)×0.05=650$
Step-by-step explanation:
It was sold for 30% more than at the auction, which means we add 30% which is 0.3 of the price at the auction so 10000 + (30/100)×10000 which equals 13000. Now take 5% which is 0.05 of 13000 to get the final answer
(x% is equal to X/100)
Answer:
1086.3 cm²
Step-by-step explanation:
surface are of sphere = πD²
SA = (3.14)(18.6 cm)^2
SA = 1086.3 cm²
1/3+1/9= 4/9, which is a rational number. 1/3 is equal to 0.333333, which is equivalent to 1/3, while 1/9 is equal to 0.1111111. By adding we get 0.44444444, which is equal to 4/9.
Answer:
152 photons
Step-by-step explanation:
Data provided in the question:
wavelength of the green light, λ = 550 nm = 550 × 10⁻⁹ m
Total energy = 5.50 × 10⁻¹⁷ J
Now,
Energy = ![\frac{nhc}{\lambda}](https://tex.z-dn.net/?f=%5Cfrac%7Bnhc%7D%7B%5Clambda%7D)
here,
n = number of photons
h = Plank's constant = 6.63 × 10⁻³⁴ J.s
c = speed of light = 3 × 10⁸ m/s
Therefore,
5.50 × 10⁻¹⁷ J = ![\frac{n\times(6.63\times10^{-34})\times(3\times10^8)}{550\times10^{-9}}](https://tex.z-dn.net/?f=%5Cfrac%7Bn%5Ctimes%286.63%5Ctimes10%5E%7B-34%7D%29%5Ctimes%283%5Ctimes10%5E8%29%7D%7B550%5Ctimes10%5E%7B-9%7D%7D)
or
( 5.50 × 10⁻¹⁷)( 550 × 10⁻⁹) = n(6.63 × 10⁻³⁴)(3 × 10⁸)
or
3025 × 10⁻²⁶ = n(19.89 × 10⁻²⁶ )
or
n = 152.086 ≈ 152 photons