Answer:
A longitudinal study is a research design that involves repeated observations of the same variables over short or long periods of time. It is often a type of observational study, although they can also be structured as longitudinal randomized experiments.
Explanation:
Carpet asorbs sound, so glass should make it echo.
"You may use the text book, class notes, current event articles and previous assessments as resources. You may not, however, receive help from any other person in completing the examination" is TRUE.
<u>Answer:</u> Option A
<u>Explanation:</u>
It become time taking on searching everything by own and specially without guidance or presence of an individuals support. But that process also train one in selecting resources wisely rather than going in quantity and attractiveness, one start choosing simple and quality based.
Many resources also become reason of failure, because it create complexity and eat more time, with less efficiency. But composed and limited material always leads to good qualification and shows independence of achievement.
Answer:
![c=10\ J/kg^{\circ} C](https://tex.z-dn.net/?f=c%3D10%5C%20J%2Fkg%5E%7B%5Ccirc%7D%20C)
Explanation:
Given that,
Heat required, Q = 1200 J
Mass of the object, m = 20 kg
The increase in temperature, ![\Delta T=6^{\circ} C](https://tex.z-dn.net/?f=%5CDelta%20T%3D6%5E%7B%5Ccirc%7D%20C)
We need to find the specific heat of the object. The heat required to raise the temperature is given by :
![Q=mc\Delta T\\\\c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{1200}{20\times 6}\\\\c=10\ J/kg^{\circ} C](https://tex.z-dn.net/?f=Q%3Dmc%5CDelta%20T%5C%5C%5C%5Cc%3D%5Cdfrac%7BQ%7D%7Bm%5CDelta%20T%7D%5C%5C%5C%5Cc%3D%5Cdfrac%7B1200%7D%7B20%5Ctimes%206%7D%5C%5C%5C%5Cc%3D10%5C%20J%2Fkg%5E%7B%5Ccirc%7D%20C)
So, the specific heat of the object is
.
Answer:
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Explanation:
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