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zimovet [89]
1 year ago
14

Which of the diagrams below illustrates sound waves generated by a siren

Physics
1 answer:
stepladder [879]1 year ago
3 0

Diagram D. shows the sound waves generated by a siren

that is moving with constant speed to the left.

A sound wave is the sample of disturbance caused by the movement of strength journeying thru a medium because it propagates far away from the supply of the sound. Sound waves are created by using object vibrations and bring strain waves, for example, a ringing cellular phone.

Sound waves fall into three classes: longitudinal waves, mechanical waves, and strain waves. keep studying to find out what qualifies them as such. Longitudinal Sound Waves A longitudinal wave is a wave wherein the movement of the medium's debris is parallel to the course of the energy transport. Sound propagates via air or different mediums as a longitudinal wave, in which the mechanical vibration constituting the wave occurs along the direction of propagation of the wave.

Learn more about sound waves here:-brainly.com/question/1199084

#SPJ9

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What is the acceleration of a ball thrown vertically upward in the presence of Earth’s
adelina 88 [10]

Answer:

-9.8 m/s/s

Explanation:

8 0
3 years ago
Suppose you pour water into a container until it reaches a depth of 12 cm. Next, you carefully pour in an 8.5 cm thickness of ol
Phantasy [73]

Answer:

the pressure at the bottom is approximately 103264 Pa

Explanation:

From Pascal's law, the pressure at the bottom of the container is the pressure from the atmosphere and the columns of water and olive , therefore

Pressure at the bottom = Pressure at the surface of the liquid ( atmospheric pressure) + pressure of the column of water + pressure of the column of olive oil

since

- Pressure at the surface of the liquid = atmospheric pressure = 101325 Pa

- pressure of the column of water = density of water * gravity * level of water

= 1000 kg/m³ * 9.8 m/s² * 0.12 m = 1176 Pa

- pressure of the column of olive oil=  density of olive oil* gravity * level of olive oil = 916 kg/m³ * 9.8 m/s² * 0.085 m = 763 Pa

therefore

Pressure at the bottom = 101325 Pa + 1176 Pa + 763 Pa = 103264 Pa

density of olive oil was taken from internet sources ( we can check that is lower than the one of water, and thus it floats )

3 0
3 years ago
Describe the conversions between potential and kinetic energy that occur when you shoot a basketball at a basket
Aleks04 [339]
When you shoot a basketball at a basket, the energy from your hands is transferred into the basketball. When you hold the ball up in preparation to shoot, it has potential energy, meaning that it has stored energy that can turn into kinetic energy. When you shoot it, that potential energy turns into kinetic energy, causing the basketball to move.
6 0
3 years ago
Différence entre biotique et abiotique
Over [174]

Answer:

Les facteurs abiotiques font référence aux éléments physiques et chimiques non vivants de l'écosystème. Les ressources abiotiques proviennent généralement de la lithosphère, de l'atmosphère et de l'hydrosphère.

Explanation:

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3 years ago
Listed as follows are eight technical accounting terms introduced in this chapter. Realization principle Credit Time period prin
Katen [24]

Answer:

1) Accounting period (2) Accounting cycle (3) None (4) Net income (5) Realisation principle (6) Credit (7) Matching principle (8) Expenses

Explanation:

Accounting period : This is the period of time in which the preparation of income statement must covered. The business community and users of finnancial statements require that the business be divided into accounting period (yearly or quarterly ) so that the position of the business can be measured over those period.

Accounting cycle : This shows the sequence of account that must be prepared in order to record, classify, and summarize accounting information. The cycle starts with the recording of the transaction, jounalizing the transaction, posting the transaction to the ledger, preparation of trial balance from the ledger in order to check the arithmetical accuracy of entries in the ledger, and the preparation of financial statement from the trial balance.

Net income : This is used for the recording of operations of the business to determine the profitability of the business. When there is an increase in owners equity resulting from profitable operations it is known as Net income.

Realization principle : This principle established the rule for the periodic recognition of revenue as soon as it is capable of objective measurement, and the value of asset received or receivable in exchange is reasonably certain. It is possible to recognize revenue at a variety of points.

Credit : This is used to show the decrease in asset or increase in liability or owners equity account.

Matching principle : This principle states that expenses and revenue should be assigned to their correct accounting period. It states that all expenses earned during the financial period either paid for or unpaid and all income earned either received or not received must be recorded and treated in that financial period.

Expenses: This is the amount of money spent in the performance of business activities, example of these is the cost of goods and services used up in the process of generating revenue for the business.

8 0
3 years ago
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