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Vladimir [108]
3 years ago
7

How to measure the weight of an object??? HELP! ​

Physics
1 answer:
Luba_88 [7]3 years ago
3 0

Answer:

Weight is a measure of the force of gravity pulling down on an object

mass*force

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If you travel at 3 m/s for 12 seconds, how far did you travel?
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3 years ago
While tuning a string to the note C at 523 Hz, a piano tuner hears 2.00 beats/s between a reference oscillator and the string.
lara31 [8.8K]

Answer:

a)the possible frequencies are 521hz ,522hz, 523, 524hz,525hz

b) 526hz

c)0.989 or a 1.14% decrease in tension

Explanation:

a) While tuning a string at 523 Hz,piano tuner hears 2.00 beats/s between a reference oscillator and the string.

The possible frequencies of the string can be calculated by

fl=f' - B

where

fl= lower limit of the possible frequency

f'= frequency of the string

B= beat heard by the tuner

fl= 523hz + Or - (2beats/secs * 1hz/1beat per sc)

fl= 521hz or 525hz

So the possible frequencies are 521hz ,522hz, 523, 524hz,525hz

b)fl=f' - B

523hz= f' - 3

f'= 523 + 3= 526hz

c) The tension is directly proportional to the square of the frequencies

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523^2 / 526^2 = 0.989 or a 1.14% decrease in tensio

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3 years ago
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