The compound only conducts electricity when in solution
Answer:
D: Increase the distance between the objects.
E: Decrease the mass of one of the objects.
Answer:
1. 6.672 kPa
2. 49.05 mm of mercury
Explanation:
h = 6400 m
Absolute pressure, p = 46 kPa = 46000 Pa
density of air, d = 0.823 kg/m^3
density of mercury, D = 13600 kg/m^3
(a) Absolute pressure = Atmospheric pressure + pressure due to height
46000 = Atmospheric pressure + h x d x g
Atmospheric pressure = 46000 - 6400 x 0.823 x 10 = 6672 Pa = 6.672 kPa
(b) To convert the pressure into mercury pressure
Atmospheric pressure = H x D x g
Where, H is the height of mercury, D be the density of mercury, g be the acceleration due to gravity
6672 = H x 13600 x 10
H = 0.04905 m
H = 49.05 mm of mercury
<h2>
Force on the bottom of the container due to liquids is 21.86 N</h2>
Explanation:
Total force is total weight of liquid.
Weight = Mass x Acceleration due to gravity
Liquid 1
Volume = 0.574 L = 574 cm³
Density = 2.50 g/cm³
Mass = 574 x 2.50 = 1435 g = 1.435 kg
Liquid 2
Volume = 0.445 L = 445 cm³
Density = 1.04 g/cm³
Mass = 445 x 1.04 = 462.8 g = 0.463 kg
Liquid 3
Volume = 0.498 L = 498 cm³
Density = 0.659 g/cm³
Mass = 498 x 0.659 = 328.18 g = 0.33 kg
Total mass of liquids = 1.435 + 0.463 + 0.33 = 2.228 kg
Weight = Mass x Acceleration due to gravity
Weight = 2.228 x 9.81
Weight = 2.228 x 9.81 = 21.86 N
Force on the bottom of the container due to these liquids = 21.86 N
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