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3 years ago

A measurement must include both a number and a(n)

Physics

2 answers:

maw [93]3 years ago

3 0

<span>A measurement must include both a number and an unit. </span>

dimulka [17.4K]3 years ago

3 0

The correct answer to the question is Unit i.e a measurement must include both a number and a unit.

EXPLANATION:

During the measurement of any physical quantity, unit plays a crucial role.

The magnitude of a measurement contains two parts known as numerical part and a unit.

This can be understood by an example.

If we say that a body is travelling 5, it gives no idea. Similarly, if we say that the box was pulled to distance metre, it has also no sense.

But, if we say that the body was pulled to 5 metre, it gives an idea about the distance travelled by the body in a specific time interval.

Hence, the magnitude of a measurement is written as -

m = nu.

Here, n is the numerical part and u is the unit.

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a wave is described by where x is in meters, y is in centimeters and t is in seconds. The angular frequency is

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Complete Question

A wave is described by y(x,t) = 0.1 sin(3x + 10t), where x is in meters, y is in centimetres and t is in seconds. The angular wave frequency is

Answer:

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Explanation:

From the question we are told that

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Generally the sinusoidal equation representing the motion of a wave is mathematically represented as

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Now comparing this equation with that given we see that

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