Answer:
student 1 is right and student 2 is wrong
Explanation:
In the graph that the two students are observing is a graph of energy and frequency vs. wavelength, this graph is constructed using the relationship between a wave and its wavelength and frequency.
c = λ f
therefore for all waves we have the speed salami.
Therefore student 1 is right and student 2 is wrong
Answer:
2 charges of electron (2C)
Explanation:
I = Q/t
2 = Q/1
Q = 2×1= 2C
Q = 2 charge of electron
We are given with the initial height of the building of 80 meters and the time where the speed is to be determined in the problem. we use the formula of motion:
y = vot + 1/2 gt^2
vo is zero since free fall
y = 78.48 m
we use another kinematic formula: <span>v<span><span>2</span><span> </span></span></span>=<span>v<span><span>0</span><span>2</span><span> </span></span></span>+2gy
<span>v2 = 2g*78.48
v = v final = 39.24 m/s
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