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(i) Weight due to gravitational acceleration.
(ii) Tension on the spring
chrispohmomanyi answered the question on September 18, 2017 at 07:39
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State any three effects of force.
Date posted: September 18, 2017. Answers (1)
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Explain why aquatic animals are able to survive under water when the surface is already frozen.
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Define the following terms as applied to curved mirrors.
a) Principal axis.
b) Centre of curvature.
c) Principal focus.
Date posted: September 16, 2017. Answers (1)
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while B was shinny. She fitted on...(Solved)
A form two student in Afraha High school had two identical metal cans. Can A was painted dull black
while B was shinny. She fitted on each of them a thermometer through the lids. She added equal
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Date posted: September 16, 2017. Answers (1)
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that the mercury level first drops before beginning...(Solved)
When mercury in a glass thermometer is used to measure the temperature of hot water, it is observed
that the mercury level first drops before beginning to rise. Explain.
Date posted: September 16, 2017. Answers (1)
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Date posted: September 16, 2017. Answers (1)
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the bigger pipe is 1.8m/s. Find...(Solved)
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the bigger pipe is 1.8m/s. Find the speed of the water in the smaller pipe
Date posted: September 16, 2017. Answers (1)
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Date posted: September 16, 2017. Answers (1)
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Define the term streamline flow.
Date posted: September 16, 2017. Answers (1)
- In an experiment to determine the specific latent heat of water, steam of 100°C was passed into water
Contained in a well lagged copper calorimeter....(Solved)
In an experiment to determine the specific latent heat of water, steam of 100⁰C was passed into water
Contained in a well lagged copper calorimeter. The following measurements were made:
-Mass of calorimeter =40g
-Mass of water + calorimeter = 135g.
-Final mass of calorimeter + water +condensed steam =148g
-Final temperature of the mixture =52⁰C.
Given that specific heat capacity of water = 4200Jkg^-1 k^-1
Specific heat capacity of copper = 390Jkg^-1 k^-1.
Determine the:
i)Mass of condensed steam
ii)The heat gained by the calorimeter and water if the initial temperature of the calorimeter and water
is 24⁰C
iii)Given that LV is the specific latent heat of vaporization of steam, write an expression for the heat
given out by steam.
iv)Determine the value of LV in (iii) above.
v)State the assumption made in the experiment.
Date posted: September 16, 2017. Answers (1)
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Date posted: September 16, 2017. Answers (1)
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Date posted: September 16, 2017. Answers (1)
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Date posted: September 16, 2017. Answers (1)
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Date posted: September 16, 2017. Answers (1)
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Explain why convection currents in gases are set up much faster than convection currents in liquids.
Date posted: September 16, 2017. Answers (1)
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In an experiment to estimate the size of a molecule of olive oil, a drop of oil of volume 0.24mm³ was placed on a clean water surface. The oil spread into a patch of area 4.2 x 10⁴mm². Estimate the size of a molecule of olive oil and express your answer in meters.
Date posted: September 16, 2017. Answers (1)