Answer:
is b and d hope id helpful
Explanation:
idk how to explain
u might be right
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Answer:
Bladder: A temporary storage place for urine
Ureter: Tube that carries urine from the kidneys from the bladder
Nephron: functional unit of the kidney.
Urethra: Exit way for urine out of the body.
Kidney: filters waste from the blood.
I hope this helps! Have an amazing day!
Answer: 3.7×10¹²watts
Explanation:
Radiation is one of the mode of heat transfer and modes differs from each other based on their medium of heat transfer. Radiation is a process of transferring heat energy from one point to another without heating the intervening medium (no material medium is required).
According to Stefan's law of radiation, the rate of emission of radiant energy is directly proportional to the fourth power of its absolute temperature.
Mathematically, R = eAT⁴
e is constant of proportionality called emissivity. Emissivity varies depending on the type of body being considered.
For the question, we are considering black body and emissivity of black body is 1 being a perfect body.
A is the area of the body
T is the absolute temperature
e = 1
A = 0.5cm²
T = 1650°C
Rate of radiation = 1×0.5×1650⁴
= 3.7×10¹²watts.
The hole will therefore radiate 3.7×10¹²watts
