W=mxg
m=W/g= 75N/10Nkg-1
=7.5kg=7500g
Moraa orina answered the question on April 6, 2018 at 16:41
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1800cm3 of fresh water of density 1000kgm-3 is mixed with 2200cm3 of sea water of density 1025kgm-3.
Calculate the density of the mixture in gcm-3.
(Solved)
1800cm3 of fresh water of density 1000kgm-3 is mixed with 2200cm3 of sea water of density 1025kgm-3.
Calculate the density of the mixture in gcm-3.
Date posted:
April 6, 2018
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Answers (1)
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April 6, 2018
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A battery is rated at 30 Ah. For how long will it work if it steadily supplies a current of 3 A?
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Date posted:
April 5, 2018
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Answers (1)
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The length of a pinhole camera is 25.0 cm. An object 2.0 cm is placed 10.0 m from the
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(Solved)
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Date posted:
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Date posted:
April 5, 2018
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(Solved)
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Date posted:
April 4, 2018
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Answers (1)
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The area of the smaller piston of a hydraulic press is 0.01 m2 and that of the bigger piston is 0.5 m2. If the force...
(Solved)
The area of the smaller piston of a hydraulic press is 0.01 m2
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Date posted:
April 4, 2018
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Answers (1)
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Explain the applications of pressure in gases and liquids
(Solved)
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Date posted:
April 4, 2018
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Answers (1)
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What would be the height of...
(Solved)
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Date posted:
April 4, 2018
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Answers (1)
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The density of mercury is 13,600 kgm-3
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(Solved)
The density of mercury is 13,600 kgm-3
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S
Date posted:
April 4, 2018
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Answers (1)
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A diver is 10 m below the surface of water in a dam. If the density of water is 1,000 kgm-3
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(Solved)
A diver is 10 m below the surface of water in a dam. If the density of water is 1,000 kgm-3
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Date posted:
April 4, 2018
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Answers (1)
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An astronaut weighs 900 N on earth. On the moon he weighs 150 N. Calculate the moons’
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(Solved)
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Date posted:
April 3, 2018
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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
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Date posted:
April 3, 2018
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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
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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
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kg of the acid.
Date posted:
April 3, 2018
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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
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Date posted:
April 3, 2018
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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)
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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
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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
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Answers (1)
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State TWO reasons why the earth pin in a three pin plug is longer than the others
(Solved)
State TWO reasons why the earth pin in a three pin plug is longer than the others
Date posted:
March 14, 2018
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Answers (1)