Answer:
The energy consumption by toaster oven is 432 kJ and that of fluorescent light (CFL) bulb is 435 kJ.
Explanation:
Power of toaster oven, P = 1.2 kW
Time, t = 6 minutes = 360 s
The energy used by toaster oven is given by :
![E=P\times t\\\\E=1.2\times 10^3\times 360\\\\E=432000\ J\\\\E=432\ kJ](https://tex.z-dn.net/?f=E%3DP%5Ctimes%20t%5C%5C%5C%5CE%3D1.2%5Ctimes%2010%5E3%5Ctimes%20360%5C%5C%5C%5CE%3D432000%5C%20J%5C%5C%5C%5CE%3D432%5C%20kJ)
Power of fluorescent light (CFL) bulb, P' = 11 W
Time, t' = 11 h = 39600 s
Energy used by fluorescent light (CFL) bulb is given by :
![E'=P'\times t'\\\\E'=11\times 39600\\\\E'=435600\ J\\\\E'=435\ kJ](https://tex.z-dn.net/?f=E%27%3DP%27%5Ctimes%20t%27%5C%5C%5C%5CE%27%3D11%5Ctimes%2039600%5C%5C%5C%5CE%27%3D435600%5C%20J%5C%5C%5C%5CE%27%3D435%5C%20kJ)
So, the energy consumption by toaster oven is 432 kJ and that of fluorescent light (CFL) bulb is 435 kJ.
Answer:
kilograms and m²/s²
Explanation:
The SI units combined to describe energy is kilograms and m²/s² ;
Energy can be derived from;
Potential energy = mgh
Units = kg x m/s² x m
= kg m²/s²
Even if we use kinetic energy, we still get kg m²/s²
Structure of Alveoli provides more surface area for lungs, to exchange the gases & for process of respiration