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Q: In Illinois the engine noise emitted by motorized vessels must not exceed what level when measured from a distance of 75 feet?
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candela measures the amount of light emitted in the range of a (three- dimensional) angular span.


Carbon footprint is measured in units of what gas?

The carbon footprint is measured in the amount of carbon dioxide (CO2) that has been emitted over the full life cycle of a product or service.


Why can astronomers use the speed of light to calculate distances?

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How is pitch and volume affected by the speed or location of an object?

The volume (amplitude) of a signal emitted by an object, as measured by an observer, is inversely proportional to the distance of that object from said observer. Specifically, the volume is subject to the famous 'inverse-square' law, where the amplitude measured at a given distance from the source of the signal will decrease with the square of the distance of the observer from the source.For example, if the amplitude of a signal measured at 1 meter from an object is 8 units, then the amplitude measured at 2 meters (double the distance) will be 2 units (one quarter the amplitude).That is the core relationship between volume and the location of the source.Pitch (frequency) of a signal is affected by the speed of the object relative to the observer. If the source is travelling towards the observer, the pitch (frequency) will be higher than if the source were stationary. Similarly, if the object is travelling away from the observer, the pitch (frequency) will be lower that if the source were stationary. This is known as the Doppler Effect. An increased pitch due to the Doppler Effect is known as Blue Shift and the reduced pitch due to a receding source is known as Red Shift.One can calculate the observed frequency if the emitted frequency and the relative speeds of the source and observer are known as follows:f = ( (V+Vr)/(V+Vs) )F0Where:f is the observed frequencyF0 is the emitted frequencyV is the speed of the signal in the medium (speed of sound, light etc)Vr is the speed of the receiver in the medium (positive if moving towards the source)Vs is the speed of the observer in the medium (positive if moving away from the receiver)


How can you use emitted in a sentence?

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The city bus emitted a steady stream of black soot from its tailpipe.


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Why do you are there different colors emitted?

There different colors emitted


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Can you measure the electromagnetic energy of a person?

In principle, electromagnetic energy can be measured. However, I am not quite sure what you mean by "the electromagnetic energy of a person". A person does not emit significant amounts of electromagnetic energy, except for infrared energy emitted by any object due to its temperature. If you mean that, yes, it can be measured as well.