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kap26 [50]
3 years ago
11

Blood returning from the body enters the heart through the __

Chemistry
2 answers:
Wewaii [24]3 years ago
6 0

Answer:

veins

Explanation:

ahrayia [7]3 years ago
3 0

Answer:

Vena Cava

Explanation:

The Vena Cava tells is where blood coming from the body transports through the vein of the Vena cava

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Mass/volume = density
mass = (440 mg)*(1g)/(1000mg) = 0.440g
volume = (1000cm)(1000cm)(t)
where t = thickness
density = 2.70 g/cm^3 = (0.440g)/((1000cm)(1000cm)(t))

multiply both sides by 't' and divide both sides by (2.70g/cm^3)

t = (0.440) / ((1000cm)(1000cm)(2.70)) = 1.629x10^-7 cm

t = (1.629 x 10^-7 cm)*(1000000 micrometers)/(1 cm) = 0.1629 micrometers

Answer is t = 0.1629 micrometers
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