Práctico 5 1 666.67 kg/m3 (0.667 g/cm3) 2 0.775 kg/m3 (7.75×10-4 g/cm3)

(ρaire a 0˚C igual a 1.29 kg/m3)

3 76.9 kg (7.69×104 g) 4 1.05 Kg 5 2.5×105 Pa 6 a) 8.09×105 Pa (para un area de 2 cm2) b) 1.59×105 Pa 7 1.75×104 Pa (131.2 mmHg) 8 0.581 m 9 a) 3.04×105 Pa

b) 9.55×107 N

10 a) 8.05×107 Pa

b) 1.207×106 N

11 6321 Pa (0.062 atm) 12 10.07 m 13 20.4 m 14 1×106 Pa 15 a) 75 N b) 0.2 m 16 6990.6 kg 17 a) 9.63×105 Pa b) 98.28 m 18 683.1 kg/m3 19 1.09 N 20 0.57 (57%) 21 a) 652.9 N

b) se hundirá ya que su peso es mayor (666.4 N)

22 1.08×10-2 m3 (10.8 L)

23 3.57 kg 24 10.5% 25 1 m/s 26 V2 = 2V1 27 0.021 m/s (2.12 cm/s) 28 0.956 atm (96845.8 Pa) 29 3.61 m/s 30 10.19 m/s 31 a) 4.24 m/s

b) 1.9 m

32 1.24×105 N 33 12 m/s 34 2% 35 3.17×106 N 36 20580 Pa (0.203 atm) 37 1423 Pa 38 1.04 m