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Oliga [24]
3 years ago
11

If 20 beats are produce with one second which of the following frequency could possibly be held by two sound waves traveling thr

ough a medium a long a common path at the same time
Physics
1 answer:
musickatia [10]3 years ago
8 0

ANY two frequencies whose difference is 20 Hz.

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Gravitational

Electrostatic

magnetic

Frictional

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What can a machine do?
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B. Make the work you do feel easier

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A net force of 1.0N acts on a 4.0 kg object, initially at rest, for 4.0 seconds. What is the distance the object moves during th
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What are the properties of a clay pot
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PLASTICITY, the MALLEABILITY of the body; extent to which they will absorb water after firing; and SHRINKAGE the extent of revolution in size of a body as water is removed.


There you go!
3 0
3 years ago
This problem has been solved!
dalvyx [7]

Answer:

A. Workdone by helium, W = -1.829KJ

B. Internal energy, DE = 25.271KJ

Explanation:

Workdone can be defined as the force moving through a distance. For a gaseous system, when the volume of the gas expands, the system is losing energy. Therefore,

W = -P*DV

Where P is the pressure in pascal

DV is the change in volume in m3

DV = Vfinal - Vinitial

= 23.70 - 5.30

= 18.4L

W = -(0.981 * 18.4)

= -18.0504L.atm

Converting L.atm to joule,

= -18.0504 * 101.325

= -1828.97J

= -1.829KJ

If the system loses heat, Q the rection occurring is Exothermic.

Heat is the transfer of energy from one system to another.

Q = mcDT

Where m is the mass of the system

C is the specific heat capacity

Q = 27.20KJ

Internal energy is the summation of the heat supplied to a system and the workdone by the system

DE = Q + W

DE = 27.10 + (-1.829)

= 25.27KJ

8 0
2 years ago
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