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3 years ago

Convert 15 km/hr to m/s show work PLS HELPPPP

Physics

1 answer:

MrRissso [65]3 years ago

6 0

Answer:

Explanation:

we know that 1 km =1000 m and 1 hour=3600 sec

therefore

15 km/hr=15*1000 m/3600 sec=4.167 m/s

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Answer:

Explanation:

Given

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For next frequency which will cause destructive interference is

i.e. $m=1$ and $m=2$

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$\lambda =\frac{1}{3}\ m$

frequency corresponding to this is

$f_2=\frac{343}{\frac{1}{3}}=1029\ Hz$

for $m=2$

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Under 129, comes 125 and 685;

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This is illustrated below.

129

∧

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