F the tube length is 1 m, what is the wavelength of 1 wave
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Ответ:
not sure. I'll try answering this later
Explanation:
I'm not sure. I'll try answering this later
Ответ:
4 m/s.
Explanation:
Given:
W = 45 lb
Converting lb to kg,
45 lb = 20.41 kg
L = 32 in
Converting in to m,
32 in = 81.3 cm
= 0.813 meters
A.
PE = mgh
= 20.41 × 9.81 × 0.813
= 162.78 J
B.
Change in PE = Change in KE
m*g*h = 0.5*m*v²
v = √(2*g*h)
9.8 × 0.813 = 0.5 × v²
v = √(2 × 9.8 × 0.813)
= 4 m/s