Answer:
Explanation:
es por el rosamiento, también depende de q suelo si es liso se mueve pero si es áspero se va a detener
Answer:
wavelength = 2m
Speed = 342m/s
Explanation:
The length of the pipe in terms of the wavelength is expressed as;
L = v/4 (For closed pipe)
v = 4L
Given
L = 50cm
L = 0.5m
Get the wavelength v;
v = 4(0.5)
v = 2.0m
Hence the wavelength is 2.0m
The speed of the sound in pipe is expressed as;
Fo = V/4L
Fo is the fundamental frequency
V is the speed of sound
L is the length of the pipe
171 = V/4(0.5)
V = 171 * 2
V = 342m/s
Hence the speed of the sound in pipe is 342m/s
Answer:
806.6 N
Explanation:
Given that :
Mass (m) = 74 kg
Acceleration due to gravity (g) = 9.8 m/s²
Acceleration during interval t1 = 1.10 m/s²
Using the relation :
Normal reaction = Mass (g + acceleration at interval t1)
Normal reaction = 74(9.8 + 1.10)
Normal reaction = 74(10.9)
Normal reaction = 806.6 N