Odpowiedź:
m = 1kg
s = 20cm² = 0,002 m²
g = 10m/s²
p = F/s = 5 000 Pa
2
s = 2m²
p = 500 Pa
F = ps = 1000N
3
s = 10cm² = 0,001
p = 1kPa = 1 000 Pa
p = mg/s
ps = mg
m = ps/g = 0,1 kg = 10dag
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Odpowiedź:
m = 1kg
s = 20cm² = 0,002 m²
g = 10m/s²
p = F/s = 5 000 Pa
2
s = 2m²
p = 500 Pa
F = ps = 1000N
3
s = 10cm² = 0,001
p = 1kPa = 1 000 Pa
g = 10m/s²
p = mg/s
ps = mg
m = ps/g = 0,1 kg = 10dag
Wyjaśnienie: