Density = mass / volume = (187.5 /1000) /(2.0 × 7.5 × 5.0 /1,000,000) = 2,500 kgm-3
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Moraa orina answered the question on April 3, 2018 at 17:07
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State the basic safety laboratory rules
(Solved)
State the basic safety laboratory rules
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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Explain why lightning is seen when there is thunderstorm
(Solved)
Explain why lightning is seen when there is thunderstorm.
Date posted:
April 2, 2018
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Answers (1)
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What is mass number
(Solved)
What is mass number?
Date posted:
April 1, 2018
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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
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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
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Answers (1)
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What is mechanical physics?
(Solved)
What is mechanical physics?
Date posted:
March 23, 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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Distinguish between momentum and impulse
(Solved)
Distinguish between momentum and impulse.
Date posted:
March 21, 2018
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Answers (1)
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State and explain two forms of mechanical energy
(Solved)
State two forms of mechanical energy
Date posted:
March 20, 2018
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Answers (1)
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A wave travels at 200m/s through a certain medium. If 40 waves pass a certain point per minute, find their wavelength.
(Solved)
A wave travels at 200m/s through a certain medium. If 40 waves pass a certain point per minute, find their wavelength.
Date posted:
March 18, 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)
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List operating characteristics of hand- held sediment samplers
(Solved)
List operating characteristics of hand- held sediment samplers.
Date posted:
March 7, 2018
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Answers (1)
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Describe on how to measure the volume of oil drop
(Solved)
Describe on how to measure the volume of oil drop.
Date posted:
March 6, 2018
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Answers (1)
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Describe an experiment on how to measure the thickness of a razor Blade
(Solved)
Describe an experiment on how to measure the thickness of a razor Blade
Date posted:
March 6, 2018
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Answers (1)
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A butcher has a beam balance and masses 0.5kg and 2kg. How would he measure 1.5kg of meat on the balance at once
(Solved)
A butcher has a beam balance and masses 0.5kg and 2kg. How would he measure 1.5kg of meat on the balance at once.
Date posted:
March 5, 2018
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Answers (1)
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Explain the reason somebody in the highland is likely to suffer from a nosebleed
(Solved)
Explain the reason somebody in the highland is likely to suffer from a nosebleed
Date posted:
March 5, 2018
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Answers (1)
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Define the term specific density?
(Solved)
Define the term specific density.
Date posted:
March 4, 2018
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Answers (1)
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State two measurements you would take in an experiment to determine the upthrust of the object
(Solved)
State two measurements you would take in an experiment to determine the upthrust of the object.
Date posted:
March 3, 2018
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Answers (1)