Answer:
there are many instruments used to measure length including rulers, tape measures, micrometers, gauges and Vernier calipers. There are also instruments that make use of scientific principles to deduce length where it may not be directly measured. Measuring the length of waves of light, sound, X-rays and radio waves is accomplished by analyzing the composition of the waves using scientific techniques that can be incorporated into the design of instruments. Measuring distances in outer space requires instruments that make use of radar, parallax, Cepheid's, supernovae, red-shift and Hubble's Law. In 225 B.C., Eratosthenes was the first person to accurately measure the circumference of the Earth. He did this by comparing the lengths of shadows in two different cities on the summer solstice and applying geometric principles.
Explanation:
sorry that it so long
Answer:
C
Explanation:
My grandma is very pessimistic and this is what she does haha
also a pessimist is basically someone whos sad and sees things as not fair, and constantly blames everyone else on their personal inedeqacies
If this is an English Question list the terms so we can pick from those. Otherwise we dont have the correct terms to answer the question
Answer:
540C.
Explanation:
A capacitor of capacitance C when charged to a voltage of V will have a charge Q given as follows;
Q = CV ----------(i)
From the question, the initial charge on the capacitor is the charge on it before it was connected to the resistor. In other words, the initial charge on the capacitor will have a maximum value which can be calculated using equation (i) above.
Where;
C = 6F
V = 90V
Substitute these values into equation (i) as follows;
Q = 6 x 90
Q = 540 C
Therefore, the initial charge on the capacitor is 540C.
C. The opportunity cost of a student who is staying up all night to study for an exam that he has to take in the early morning is sleep or rest.
<h3>
What is law of opportunity cost?</h3>
The law of increasing opportunity cost is an economic principle that describes how opportunity costs increase as resources are applied.
As the student gives up his sleep or night rest in the place of his exam preparation, we say that the opportunity cost is the sleep or rest.
Thus, the opportunity cost of a student who is staying up all night to study for an exam that he has to take in the early morning is sleep or rest.
Learn more about opportunity cost here: brainly.com/question/8846809
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