An object with projectile motion constantly changes direction. TRUE FALSE
1 answer:
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Given:
The number of vibrations of the tuning fork is,
in,
To find:
The frequency of the fork
Explanation:
The frequency is the number of vibrations in 1 second
The frequency for the given fork is,
Hence, the frequency is 148 Hz.
Answer:
Explanation:
velocity of wave in a tense wire is given by the expression
v is velocity . T is tension and m is mass per unit length .
for steel wire
m = π r² ρ where r is radius and ρ is density
= 3.14 x (5.3 x 10⁻⁴)²x7.75 x 10³
= 683.57 x 10⁻⁵ kg/m
v =
= 1.47 x 10² m /s
= 147 m /s
for iron wire
m = π r² ρ where r is radius and ρ is density
= 3.14 x (5.3 x 10⁻⁴)²x7.86 x 10³
= 693.27 x 10⁻⁵ kg/m
= 146 m /s
Time taken to move from one end to another
= 17.7 / 147 + 28.5 / 146
= .12 + .195
= .315 s .