" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Dane:
a = 0,02m = 2 cm
m = 18 g
Rozw.:
V = a³ = (2cm)³ = 8cm³
ρ = m/V = 18g / 8cm³ = 2,25 [g/cm³]
Zad2
Dane:
ρ = 7500kg/m³
m = 22,5 kg
h = 1m
Rozw.:
ρ = m/V
V = m/ρ = 22,5 kg / 7500[kg/m³] = 0,003 m³
V = Pp × h
Pp = V / h = 0,003 m³ / 1m = 0,003 m²
Zad3
Dane:
F = 0,005N
ρ = 3520 kg/m³
Rozw.:
ρ = m/V
F = m×g
m = F/g = 0,005 N / 10 [m/s²] = 0,0005 kg
V = m/ρ = 0,0005 kg / 3520 kg/m³ = 0,00000014 m³
lub
V = m/ρ = 0,5 g / 3,52 [g/cm³] = 0,14 cm³
Zad4
Dane:
F = 0,2098 N
V = 2cm³
Rozw.:
F = m×g
m = F/g = 0,2098 N / 10 [m/s²] = 0,02098 kg = 20,98 g
ρ = m/V = 20,98 g / 2cm³ = 10,49 [g/cm³]