In everyday speech, the phrases "mass" and "weight" are frequently used interchangeably, yet they have different meanings. Weight is a measurement of how the force of gravity works upon a mass, whereas mass is a measure of the amount of matter in a material. Therefore, Weight and mass are not interchangeable terms.
A body's mass is an inherent quality. Prior to the discovery of the atom and particle physics, it was widely considered to be tied to the amount of matter in a physical body.
The quantity of matter in an item is its mass. The gravitational pull exerted on a mass is known as weight. Combining the two would be confusing because workplace can affect weight.
An object's mass is a crucial indicator of how much stuff it contains. Weight is a measurement of an object's gravitational pull. It is influenced by the object's location in addition to its mass. As a result, weight is a measurement of force.
Thus, Weight and mass are not interchangeable terms.
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b.2 and 4
c.1 and 3
d.2 and 5
e.all
The Nyquist Theorem is a principle in digital communications specifying that a signal must be sampled at least twice its highest frequency in order to accurately reproduce the original analog signal. An example is digitizing an audio signal with a highest frequency of 20 kHz, which needs to be sampled at a minimum rate of 40 kHz.
The Nyquist Theorem, also known as Nyquist-Shannon sampling theorem, is a principle that engineers follow when digitizing analog signals. This theorem is fundamental for understanding how digital audio technology works. It states that a signal must be sampled at least twice its highest frequency in order to accurately reproduce the original analog signal. In simpler terms, it's a guideline for converting a continuous analog wave into a series of discrete digital samples.
Let's take an example. Suppose you have an audio signal with a maximum frequency of 20 kHz. According to the Nyquist Theorem, you need to sample that audio signal at a rate of at least 2 (20 kHz) = 40 kHz to accurately digitize it. This is why the standard sample rate for audio CDs is 44.1 kHz (slightly higher than the 40 kHz rate determined by the Nyquist Theorem).
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Answer:
1- 2.6 mph
2- 4.9 mph
Explanation:
See attachment