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Pressure = h ? g = 10 × 1000 × 10 = 100,000 Nm-2
.
Moraa orina answered the question on April 4, 2018 at 17:50
- 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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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?
Date posted: April 3, 2018. Answers (1)
- 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)
- 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)
- 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)
- 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)
- 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)
- State the basic safety laboratory rules(Solved)
State the basic safety laboratory rules
Date posted: April 3, 2018. Answers (1)
- 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)
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Explain why lightning is seen when there is thunderstorm.
Date posted: April 2, 2018. Answers (1)
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What is mass number?
Date posted: April 1, 2018. Answers (1)
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Differentiate between temperature and heat.
Date posted: March 27, 2018. Answers (1)
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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 travel a distance of 150m.
Date posted: March 25, 2018. Answers (1)
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Date posted: March 23, 2018. Answers (1)
- 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)
- Distinguish between momentum and impulse (Solved)
Distinguish between momentum and impulse.
Date posted: March 21, 2018. Answers (1)