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nikdorinn [45]
3 years ago
10

Which device records digital signals? A. V C R tape. B. C D. C. phonograph record. D. audio cassette.

Physics
1 answer:
VARVARA [1.3K]3 years ago
5 0

Answer:

CD

Explanation:

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A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0 g steel wire. When the wind blows hard, the wire hums at it
kupik [55]

Answer: The mass of the sculpture is 11.8kg

Explanation:

Using the equation of fundamental frequency of a taut string.

f = (1/2L)*√(T/μ) .... (Eqn1)

Where

f= frequency in Hertz =80Hz

T = Tension in the string = Mg

M represent the mass of the substance (sculpture) =?

g= 9.8m/s^2

L= Length of the string=90cm=0.9m

μ= mass density = mass of string /Length of string

mass of string =5g=0.005kg

L=0.9m

μ=0.005/0.9 = 0.0056kg/m

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Square both sides

20736= T/0.0056

T= 116.12N

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M= 11.8kg

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4 0
3 years ago
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