Answer:
420
Explanation:
420 because 120 x 3 = 360
120/2 = 60 and 360 + 60 = 420
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Answer:
The best estimate of the depth of the well is 2.3 sec.
Explanation:
Given that,
Record time,





We need to find the best estimate of the depth of the well
According to record time,
We can write of the record time





Here, all time is nearest 2.3 sec.
So, we can say that the best estimate of the depth of the well is 2.3 sec.
Hence, The best estimate of the depth of the well is 2.3 sec.
P = m*v
7.5 = m*15
m = 7.5/15 = 0.5 kg
Wave D has the same wavelength as wave A, but the amplitude is lower. The answer is Wave D.
A: the type of plant
B: how tall the plant is