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puteri [66]
4 years ago
13

A wave travels at a frequency of 387 Hz. What isthe period of the wave?​

Physics
1 answer:
Ulleksa [173]4 years ago
5 0

Answer:

¹/₃₈₇ second

Explanation:

<em>The period of a wave is the reciprocal of its frequency.</em>

So, simply, the frequency is ¹/₃₈₇ second(s), as that is the reciprocal of the frequency, 387 Hz.

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A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water in the North Atlantic. The F
Mandarinka [93]

Answer:

f_{U}= 1019.72hz

Explanation:

From the equation we are told that:

Velocity of French sub V_{U}= 43.00km/h

Velocity of U.S. sub at V_{F}|=64.00 km//h

French Wave Frequency  F_{F}=1000Hz

Velocity of wave  V_{s}=5470 km/h

Generally the equation for Signal's frequency as detected by the U.S. is mathematically given by

Doppler effect

 f_{U} = \frac{ f_F (vs + v_{U})}{(v_s - v_F) }

 f_{U}= \frac{ 1000 x ( 5470+64)}{(5470-43)}

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5 0
3 years ago
Which of these objects must have the greatest force acting on it? pls help fast
8_murik_8 [283]

Let's look at Newton's second law

  • F=ma

Force is directly proportional towards mass

If mass is more force will be more.

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So it would expert most force

Option D

8 0
2 years ago
Which illustration represents high accuracy but low precision?<br><br><br> plz help
Mashutka [201]

Answer:

A

Explanation:

8 0
4 years ago
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Which wave has a disturbance that is parallel to the wave motion?
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6 0
3 years ago
A paper-filled capacitor is charged to a potential difference of V 0 = 2.5 V V0=2.5 V . The dielectric constant of paper is κ =
forsale [732]

Answer:

V_1=9.25 V

Explanation:

We are given that

V_0=2.5 V

k=3.7

We have to find the new potential difference of the capacitor.

When the capacitor is disconnected then the charge stored in capacitor is constant.

When we introduce material of dielectric constant k between the plates of capacitor then the capacitance of capacitor increases k times.

C_0=\frac{Q}{V_0}

C'=kC=\frac{kQ}{V_1}

\frac{Q}{V_0}=\frac{kQ}{V_1}

V_0=\frac{V_1}{k}

Using the formula

V_0=\frac{V_1}{k}

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Hence, the new potential difference V_1=9.25 V

5 0
3 years ago
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