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Distinguish between database application and database system.
Date posted:
April 11, 2018
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Outline the maxims of equity
Date posted:
April 11, 2018
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Give reasons why the crustal rocks are solid and cooler than those of the mantle.
Date posted:
April 10, 2018
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A ray of light from air passes successively through parallel layers of water, oil, glass and then into air again. If the refractive indices of water, oil and glass are 4/3, 6/5 and 3/2 respectively and the angle of incidence in air is 600.
Calculate
i) The angle of refraction in water.
ii) The angle of incidence at the oil-glass interface.
Date posted:
April 10, 2018
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State the differences between evaporation and boiling
Date posted:
April 10, 2018
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An aluminium tray of mass 400g containing 300g of water is placed in a refrigerator. After 80 minutes, the
tray is removed and it is found that 60g of water remains unfrozen at 0^oC. If the initial temperature of the tray and its contents was 20^oC, determine the average amount of heat removed per minute by the refrigerator. Take s.h.c of aluminium = 900JKg-1K-1, s.h.c of water = 4200JKg-1K-1, s.l.h. of fusion of ice = 3.4*25JKg
Date posted:
April 10, 2018
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A block of ice of mass 40g at 0^oC is placed in a calorimeter containing 400g of water at 20^oC. Ignoring heat
absorbed by the calorimeter, determine the final temperature of the mixture after all the ice has melted.
Take s.h.c.of water= 4200JKg-1K-1 and the s.l.h. of fusion of ice= 340, 000JKg-1.
Date posted:
April 10, 2018
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In an experiment to determine the specific heat capacity of a metal, a 20g of the metal was transferred
from boiling water to a lagged copper calorimeter containing cold water. The water was stirred and a
final steady temperature was realized. The following data was recorded:
-initial temperature of cold water and calorimeter =20^oC
-temperature of boiling water =99^oC
-final temperature of water, calorimeter and metal =23.7^oC
-mass of cold water plus calorimeter =130g
mass of calorimeter =50g
Take s.h.c. of water=4200JKg-1K-1, s.h.c. of copper=400JKg-1K-1.
Use the data above to determine:
Date posted:
April 10, 2018
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Find the energy dissipated in 5 minutes by an electric bulb with a filament of resistance of 500?
connected to a 240V supply.
Date posted:
April 10, 2018
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What is the importance of diffusion to plants and animals?
Date posted:
April 10, 2018
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Explain how the following tissues are adapted to provide mechanical support in plants
a) Parenchyma
b) Collenchyma
Date posted:
April 10, 2018
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What's the difference between proforma invoice and an invoice?
Date posted:
April 10, 2018
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State the first prime minister in Kenya.
Date posted:
April 10, 2018
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Fraction distillation of liquid air usually produces nitrogen and oxygen as the major products
1. Name one substance that is used to remove carbon dioxide from the air before it is changed into liquid
2. Describe how nitrogen gas is obtained from the liquid air (boiling points nitrogen = -196 degrees oxygen =-183 degrees
Date posted:
April 10, 2018
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State the functions and roles of a presiding officer
Date posted:
April 10, 2018
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Give the main types of page orientation.
Date posted:
April 10, 2018
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In experiment, the diameter of oil patch was 21 cm for an oil drop of radius 0.28 mm. Determine the diameter of oil molecule.
Date posted:
April 10, 2018
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Distinguish between a legend and label in charting.
Date posted:
April 10, 2018
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State five ways in which God inspired human authors of the Bible.
Date posted:
April 10, 2018
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Differentiate between "Autofilter" and "Advanced Filter"
Date posted:
April 10, 2018
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Differentiate between Sorting and filtering.
Date posted:
April 10, 2018
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Outline five differences between direct production and indirect production.
Date posted:
April 10, 2018
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Show how Bertolt Brecht satirizes various institutions in his play Caucasian Chalk Circle.
Date posted:
April 10, 2018
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Fafanua aina zozote kumi za migogoro ijitokezayo katika tamthilia ya kigogo
Date posted:
April 10, 2018
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Explain how you would separate a mixture of nitrogen and oxygen given that their boiling points are -196^0c and 183^0c.
Date posted:
April 10, 2018
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Explain the procedures an auditor should follow before and after accepting nomination.
Date posted:
April 10, 2018
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Tell the story of Mary's visit to Elizabeth.
Date posted:
April 9, 2018
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Into a stream, with no trace of salt initially, a salt with a concentration of 20 mg/cc is introduced at a constant rate of 2 litres per minute. The samples collected at a downstream section sufficiently far away indicated an equilibrium salt concentration of 0.05 ppm. Determine the discharge in the stream from this data.
Date posted:
April 9, 2018
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The mean daily flows at a gauging station for a period of 7 days are 7, 27, 58, 41, 31, 20 and 13 m3/s respectively. What is the total volume of streamflow at the site in cumec-days(metres cubed per second.)? and in hectare-metres? What is the mean flow rate for the week? If the drainage area at the site is 100 km2, what is the runoff volume in cm?
Date posted:
April 9, 2018
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What is the homophone of Guest?
Date posted:
April 9, 2018