Answer:
E = hf or 
Explanation:
The expression that gives the amount of light energy that is converted to other forms between the fluorescence excitation and emission events is given by :
E = hf
f is the frequency
c is the speed of light
is the wavelength
Hence, this is the required solution.
Answer:
that is like trying to learn your abc's at the age of 2 months old..........
Explanation:
:) just sayin
Answer:
0.1m/s²
Explanation:
Using the equation of motion
V = u+at
V is the final speed = 0.9m/s
Initial speed u = 0.5m/s
Time = 4secs
Get the acceleration
0.9 = 0 5+4a
0.9-0.5 = 4a
0.4 = 4a
a = 0.4/4
a = 0.1m/s²
Hence the acceleration is 0.1m/s²
I think it is number 4 because he is putting force on the chair but the chair is not exerting force on him
I think it would be answer B. a surface wave
