Answer:
F=-50N
M=200kg
U=15m/s
F=Ma
a=F/M=-50/200=-0.25
V^2-U^2=2aS
0-(15)^2=2(-0.25)S
S=-225/-0.5=450m
V=U+at
0=15-0.25t
t=-15/-0.25=60s
Explanation:
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Answer:
Frequency of sound wave in water = 6.8 Hz
Explanation:
Given:
Speed of sound wave in water = 10.2 m/s
The wavelength of the sound wave in water = 1.5 m
Find:
Frequency of sound wave in water
Computation:
Frequency = Speed of wave / Wavelength
Frequency of sound wave in water = Speed of sound wave in water / The wavelength of the sound wave in water
Frequency of sound wave in water = 10.2 / 1.5
Frequency of sound wave in water = 6.8 Hz
Answer: B) He has too many independent variables.
Explanation: Nothing in the experiment is a constant or being measured.
Answer:
I got the answer of yr question
but it is too long
brainly is not taking
