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ehidna [41]
3 years ago
11

Amy counts the wave crests traveling down a stretched string.Five wave crests pass Amy in two seconds.What is the frequency of t

he wave?
Physics
1 answer:
Verdich [7]3 years ago
4 0
The frequency of a wave is a measure of the number of waves that passes through a point per unit of time. It has SI units of s^-1. It is also equivalent to Hertz (Hz). We calculate the frequency of the wave described as follows:

Frequency = 5 waves / 2 s = 2.5 / s or 2.5 Hz
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a stockbroker "talks up" a piece of stock that he wants you to buy because it was a high return rate. This is an example of: ?
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I believe the answer is manipulation of information. Hope I helped!
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En un barrio un estudiante observa un roedor en medio de dos postes, los cuales están comunicados por un solo cable de fibra ópt
castortr0y [4]

Answer:

7 Newton

Explanation:

Dado

Longitud de la cuerda = 50 m

El cable se dobla en 0,058 m.

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Sustituyendo los valores dados obtenemos

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3 years ago
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Samples of different materials, A and B, have the same mass, but the sample
Effectus [21]

Answer:

B. The particles that make up material B have more mass than the

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Explanation:

3 0
3 years ago
A rigid tank contains 1 kg of air (ideal gas) at 15 °C and 210 kPa. A paddle wheel supplies work input to the air such that fina
lisov135 [29]

Answer:

-58.876 kJ

Explanation:

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T₂ = Final temperature = 97°C

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Cv = Specific heat at constant volume = 0.718 kJ/kgk

W = Work done

Q = Heat = 0 (since it is not mentioned we are considering adiabatic condition)

ΔU = Change in internal energy

Q = W+ΔU

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⇒W = -mCvΔT

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