A student noticed that the average diameter of the glass beads used for the mass measurements was significantly smaller than tho
1 answer:
Answer:
The error mentioned is a systematic error.
Step-by-step explanation:
The glass beads used for mass measurements was noticed to be significantly smaller than those used for volume measurements.
The formula for density is = .
So if we try to experimentally determine the value of density of glass then the beads for measuring the mass are much smaller than the beads for measuring volume.Thus in this case we can see that the density measured will actually be less than the actual density of glass.
However since this error can be seen and quantified and corrected it is not a random error, but it is a systematic error.
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The amount of cardboard needed to make a cuboid box of dimensions 8 inch, 3 inches and 3 inches is 114 sq. inches.
<h3>What is the surface area of cuboid?</h3>Let the three dimensions(height, length, width) be x, y,z units respectively.
The surface area of the cuboid is given by
For this case, tissue box is almost cuboid shaped.
Also, its dimensions are given being 8 inches, 3 inches and 3 inches.
Suppose we measure the amount of cardboard needed in terms of area, then, the amount of cardboard needed to make that box(without any whole, full cuboid) is equal to the area of its surface(either outer or inner if we assume 0 inches thickness of cardboard),
Thus, we get:
Amount of cardboard needed = surface area of cuboid box with dimensions 8 by 3 by 3 (in inches)
=
Thus, the amount of cardboard needed to make a cuboid box of dimensions 8 inch, 3 inches and 3 inches is 114 sq. inches.
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