Answer:
A compass needle is affected by Earth's magnetic field.
A magnetic field is strongest at the poles.
Explanation:
Answer:
This question is incomplete
Explanation:
Experimentally, when trying to determine the concentration of an unknown sample of CuSO₄ with known absorbance, a standard curve is used. The standard curve is a scattered plot/graph in which known concentrations and there respective/corresponding absorbance are plotted on a "X and Y axis" graph (scattered plot). The absorbance is represented on the y-axis while the concentration is represented on the x-axis.
Once this known values are plotted on the standard curve, an unknown value (either absorbance or concentration) can be extrapolated from the curve. What is missing from the question is data required for the standard curve.
This question shows the absorbance of the CuSO₄ has been determined (most likely using spectrophotometer), the concentration could have been extrapolated from a standard curve.
An example of a standard curve is provided in the attachment for guidance.
It is a method in the textile industry where two sets of threads are interwoven at the right-angles to form a cloth
<u>Explanation:</u>
<u>1.100% cotton:</u>
- open weave.
- easily distorted with water and washing.
- stretches in one direction only.
<u>2. 100% wool:</u>
- very strong.
- dense and compact.
- different faces.
- diagonal design.
- soft and pliable.
<u>3. 100% Nylon Rope:</u>
- Not durable.
- Tends to snag
- The shiny surface.
- high light reflectance.
- light fiction with other garments.
<u>4. 100% Spandex Nylon:</u>
- Not durable.
- Tends to snag and break during wear.
- light fiction with other garments.
<u>5. 100% cotton blend</u>
- easily distorted with water and washing.
Answer:
it is a category of star. our sun is a white dwarf
Explanation:
Answer:
Just took this - it is: by observing cellular respiration under the absence of light.
Explanation:
