there here is your answer to your question
Uncertainty in measurements and calculations means difference between actual and measured data. We can say that all measurements have some degree of uncertainty. ... Systematic error (because of error in measuring instrument) 2. Random error (human errors such as- delay in starting, delay in stopping).
Power is the rate in which work is being done
Answer:
1st, 2nd, and 4th
Explanation:
1st conserves gasoline/petroleum
2nd conserves electricity
4th conserves paper
The answer is option D.
Area of sheet, A1 = length × breadth
= (8.5 inch * 2.54 cm) ×11 inch * 2.54 cm)
= 603.22
![cm^{2}](https://tex.z-dn.net/?f=%20cm%5E%7B2%7D%20)
Now, Mass of sheet, M1 = 4.50 gms
Thus, Area of sheet A2, = 1
![cm^{2}](https://tex.z-dn.net/?f=%20cm%5E%7B2%7D%20)
And, Mass of sheet, M2 = ?
Thus, Mass of M2 =
![\frac{4.50 gms}{603.22}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4.50%20gms%7D%7B603.22%7D%20)
= 0.0073