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Lunna [17]
3 years ago
10

Which of the following describes a condition in which an individual would not hear an echo?

Chemistry
2 answers:
egoroff_w [7]3 years ago
4 0

The correct answer is D.

Echo refers to the sound that is heard when a sound wave is reflected back from a surface. An echo sound is made when a sound wave traveled through the air, hit a hard surface and get reflected back. Generally, hard surfaces reflect sound wave while soft surfaces absorb sound waves. Reflected sound waves are used in application of some devices that are used in range and direction finding.

amid [387]3 years ago
4 0
D- A sound wave reaches the ear and the reflected wave reaches the ear less than 0.1 second later.
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<em>Answer</em><em>:</em>

<em>Glycolysis</em>

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A constant voltage source is called a DC Voltage with a voltage that varies periodically with time is called an AC voltage. Voltage is measured in volts, with one volt being defined as the electrical pressure required to force an electrical current of one ampere through a resistance of one Ohm. Voltages are generally expressed in Volts with prefixes used to denote sub-multiples of the voltage such as microvolts ( μV = 10-6 V ), millivolts ( mV = 10-3 V ) or kilovolts ( kV = 103 V ). Voltage can be either positive or negative.

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wolverine [178]

Answer:

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