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alukav5142 [94]
3 years ago
14

A wave front has the form of a

Physics
1 answer:
podryga [215]3 years ago
3 0
Your answer is "<span>surface of a sphere"

Hope this helps.</span>
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Hello please help i’ll give brainliest
KatRina [158]

Answer:

Antarctica and Australia were one landmass millions of years ago

Explanation:

Thats the answer I'm very sure of it

5 0
3 years ago
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A person travels by car from one city to another with different constant speeds between pairs of cities. she drives for 50.0 min
liraira [26]
I think it's 45 miles. Don't know for sure though
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3 years ago
These UV photons can break chemical bonds in your skin to cause sunburn—a form of radiation damage. If the 305 nm radiation prov
astraxan [27]

Answer:

energy = 391.902 kJ /mol

Explanation:

given data

wavelength = 305 nm = 305 ×10^{-9} m

to find out

average energy

solution

we know speed of light is 3 ×10^{8} m/s

so we find frequency here first by speed of light formyla

speed = wavelength × frequency

3 ×10^{8}  = 305 ×10^{-9} × frequency

frequency = 9.8360 ×10^{14} s^{-1}

so energy is

energy = hf

here h = 6.62 ×10^{-34} J-s

so

energy =  6.62 ×10^{-34}  × 9.8360 ×10^{14}

energy = 6.51 ×10^{-14} J

so

energy = 6.51 ×10^{-14}  × \frac{6.02*10^23}{1000} kJ/mol

energy = 391.902 kJ /mol

7 0
4 years ago
PLEASE HELP i’m giving 32 points!!
meriva

Answer: 1 How many grams of KCl will dissolve in 1 liter of H2O at 50 °C? 5. 58.0 g of K2Cr2O7 is added to 100 g H2O at. 0 °C. With constant stirring, to what temp-.                                                                                                                                     2  34 °C? 4. How many grams of KCl will dissolve in 1 liter of H2O at 50 °C? 5. 58.0 g of ... A saturated solution of KClO3 was made with 300 g of H2O at. 34 °C.

Explanation:

7 0
3 years ago
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How do you do this?Or what are the formulus
LuckyWell [14K]
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4 0
3 years ago
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