Answer:
Explanation:
From smallest to largest we have atom >molecule>cell>tissues>organ>organism>population>ecosystem>biosphere
The smallest level capable of demonstrating all the characteristic of life is the CELL
Answer:
p
Explanation:
Please I'm not a physician but may I can try
The heat transfer that we'll have will be:
- At first, the metal bar will emanate heat through radiation, to the atmosphere, and to the second metal, through conduction.
- Because of this, the second bar will start to increase it's temperature, up to the fusion point, spending the energy received on the fusion, and also radiating heat to the atmosphere. It won't emit heat in any other form, since heat transmission can happen only from a hot body to a cooler one, and the only things in contact are the two bars.
Answer:
(a)
(b)
Explanation:
(a)
Minimum power to maintain desired temperature is given by
(b)
Efficiency of heat engine
Converting temperature to Kelvin
T1=31 degrees=31+273=304 K
T2=500 degree=500+273=773
Considering required output of then the power needed to be supplied by the solar collector to heat engine is given by