Pressure = h ? g = 10 × 1000 × 10 = 100,000 Nm-2
.
Moraa orina answered the question on April 4, 2018 at 17:50
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A man of mass 84 kg stands upright on a floor. If the area of contact of his shoes and
the floor is 420 cm2
,...
(Solved)
A man of mass 84 kg stands upright on a floor. If the area of contact of his shoes and
the floor is 420 cm2
, determine the average pressure he exerts on the floor. (Take g =
10 N/Kg)
Date posted:
April 4, 2018
.
Answers (1)
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Differentiate between scalar and vector quantity giving examples
(Solved)
Differentiate between scalar and vector quantity giving examples
Date posted:
April 3, 2018
.
Answers (1)
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Explain the differences between mass and weight
(Solved)
Explain the differences between mass and weight
Date posted:
April 3, 2018
.
Answers (1)
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An astronaut weighs 900 N on earth. On the moon he weighs 150 N. Calculate the moons’
gravitational strength. (Take g = 10 N/kg)
(Solved)
An astronaut weighs 900 N on earth. On the moon he weighs 150 N. Calculate the moons’
gravitational strength. (Take g = 10 N/kg)
Date posted:
April 3, 2018
.
Answers (1)
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What is induction? What is earthing?
(Solved)
What is induction?
What is earthing?
Date posted:
April 3, 2018
.
Answers (1)
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100 cm3
of fresh water of density 1,000 kgm-3
is mixed with 100 cm3
of sea water of density
1030 kgm-3
. Calculate the density of the mixture
(Solved)
100 cm3
of fresh water of density 1,000 kgm-3
is mixed with 100 cm3
of sea water of density
1030 kgm-3
. Calculate the density of the mixture
Date posted:
April 3, 2018
.
Answers (1)
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The mass of an empty density bottle is 20 g. Its mass when filled with water is 40.0 g and
50.0 g when filled with...
(Solved)
The mass of an empty density bottle is 20 g. Its mass when filled with water is 40.0 g and
50.0 g when filled with liquid X. Calculate the density of liquid X if the density of water is
1,000 kgm-3
.
Date posted:
April 3, 2018
.
Answers (1)
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The relative density of some type of wood is 0.8. Find the density of the wood in kg/m3
(Solved)
The relative density of some type of wood is 0.8. Find the density of the wood in kg/m3
Date posted:
April 3, 2018
.
Answers (1)
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The density of concentrated sulphuric acid is 1.8 g/cm3
. Calculate the volume of 3.1
kg of the acid.
(Solved)
The density of concentrated sulphuric acid is 1.8 g/cm3
. Calculate the volume of 3.1
kg of the acid.
Date posted:
April 3, 2018
.
Answers (1)
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A block of glass of mass 187.5 g is 5.0 cm long, 2.0 cm thick and 7.5 cm high.
Calculate the density of the glass...
(Solved)
A block of glass of mass 187.5 g is 5.0 cm long, 2.0 cm thick and 7.5 cm high.
Calculate the density of the glass in kgm-3
.
Date posted:
April 3, 2018
.
Answers (1)
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State the basic safety laboratory rules
(Solved)
State the basic safety laboratory rules
Date posted:
April 3, 2018
.
Answers (1)
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Example
100 cm3
of fresh water of density 1,000 kgm-3
is mixed with 100 cm3
of sea water of density
1030 kgm-3
. Calculate the density of the mixture.
(Solved)
Example
100 cm3
of fresh water of density 1,000 kgm-3
is mixed with 100 cm3
of sea water of density
1030 kgm-3
. Calculate the density of the mixture.
Date posted:
April 3, 2018
.
Answers (1)
-
Explain why lightning is seen when there is thunderstorm
(Solved)
Explain why lightning is seen when there is thunderstorm.
Date posted:
April 2, 2018
.
Answers (1)
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What is mass number
(Solved)
What is mass number?
Date posted:
April 1, 2018
.
Answers (1)
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Differentiate between temperature and heat
(Solved)
Differentiate between temperature and heat.
Date posted:
March 27, 2018
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Answers (1)
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A polar bear appears to be upside down in the sky. Explain
(Solved)
A polar bear appears to be upside down in the sky. Explain
Date posted:
March 26, 2018
.
Answers (1)
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A vibrator generates 120 waves in 5 seconds.The distance between successive crests of the waves is 8cm. Determine the time taken by the waves to...
(Solved)
A vibrator generates 120 waves in 5 seconds.The distance between successive crests of the waves is 8cm. Determine the time taken by the waves to travel a distance of 150m.
Date posted:
March 25, 2018
.
Answers (1)
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What is mechanical physics?
(Solved)
What is mechanical physics?
Date posted:
March 23, 2018
.
Answers (1)
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A machine has an efficiency of 80%.if the machine is required to overcome a load of 60N with a force of 40N. Calculate the velocity ratio?
(Solved)
A machine has an efficiency of 80%.if the machine is required to overcome a load of 60N with a force of 40N. Calculate the velocity ratio?
Date posted:
March 22, 2018
.
Answers (1)
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Distinguish between momentum and impulse
(Solved)
Distinguish between momentum and impulse.
Date posted:
March 21, 2018
.
Answers (1)