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(a) What is the hexadecimal equivalent of 7478
(b) Use one’s compliment to solve 610
Date posted:
September 30, 2019
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Use tables of logarithms to evaluate;
Date posted:
September 30, 2019
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Uranium -234 undergoes a radioactive decay represented by the equation shown below.
Find the value of a and b
Date posted:
September 30, 2019
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Evaluate ;
Date posted:
September 30, 2019
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Given that the wavelength of a certain electromagnetic wave is 7500cm, determine its frequency. (Take the speed of light in a vacuum as 3.0 x 108m/s)
Date posted:
September 30, 2019
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The figure below shows an image I formed by an object placed in front of a convex mirror. C and F are the centre of curvature and principal focus of the mirror respectively. Using appropriate rays locate the object position.
Date posted:
September 30, 2019
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Explain the meaning of the following terms as used in computer programming.
i) Syntax
ii) Semantics
Date posted:
September 30, 2019
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Differentiate between the following breeds of livestock.
i) New Zealand white and Californian white.
ii) Large white and landrace
Date posted:
September 30, 2019
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The figure below shows part of an electric circuit. The charge stored in the 9μF capacitor is 1.4 micro coulombs
Determine the p.d across the 5μF capacitor.
Date posted:
September 30, 2019
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Discuss the importance of livestock to a Kenyan farmer.
Date posted:
September 30, 2019
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List six different types of drainage.
Date posted:
September 30, 2019
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The figure below shows water waves travelling from region A through B to C in a ripple tank.
On the same diagram, complete the figure to show incident waves at region A and after crossing the boundary to C.
Date posted:
September 30, 2019
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Give reasons why the burning of Bushes as a methods of land clearing should be discouraged.
Date posted:
September 30, 2019
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Place the following tools in their respective categories and state their uses.
a) Panga
b) Shovel
c) Pick axe
d) Garden line
e) Wheelbarrow
f) Sprayer
g) Ripsaw
h) Tape measure
i) Scraper
j) Marking gauge
Date posted:
September 30, 2019
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State two effect of HIV/AIDS on agriculture.
Date posted:
September 30, 2019
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State TWO circumstances under which interviews may be used as a method of gathering information
Date posted:
September 30, 2019
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A coin is placed at the bottom of a beaker filled with water to a height of 2.4cm as shown in the figure below. Given that the refractive index of water is 1.33, determine the apparent depth of the coin.
Date posted:
September 30, 2019
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Give four reasons why Agriculture considered important in Kenya’s economy.
Date posted:
September 30, 2019
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Define an information system.
Date posted:
September 30, 2019
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A farmer with one hectare of land requires 40kg of n in his farm. He applied CAN which costs shs 35 per kg. CAN contain 20kg N.
(a) Calculate the amount of C.A.N the farmer requires
(b) How much will a farmer with one and a half hectares spend to apply in his farm?
(c) Name two types of compound fertilizers used by farmers
Date posted:
September 30, 2019
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Most computerized security systems make use of biometric analysis. Name Physical features of human being that can be considered for this analysis.
Date posted:
September 30, 2019
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A certain car battery is rated 30Ah. Determine the amount of current it can supply in 10 minutes.
Date posted:
September 30, 2019
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A soft iron bar AB is placed in a magnetic field of a horse shoe magnet as shown below.
What are the polarities of A and B.
Date posted:
September 30, 2019
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State two differences between sound waves and microwaves.
Date posted:
September 30, 2019
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A current carrying wire is placed above a compass needle as shown in the figure below.If the current flows in the direction A to B, show in the diagram the deflection of the compass needle.
Date posted:
September 30, 2019
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Three pegs R,S and T are on the corners of a triangular plain field. R is 300m from S on a bearing of 300o and T is 450 m directly south of R
(a) Using a scale of 1:6000 draw a diagram to show the positions of the pegs
(b) Use the scale drawing to determine:
(i) The distance between T and S in metres.
(ii) The bearing of T from S
(c) Find the area of the field, in hectares correct to one decimal place
Date posted:
September 30, 2019
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State four divisions of livestock farming.
Date posted:
September 30, 2019
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A trader has sh. 1200,000 and divided it in the ratio 5:3. He used the larger amount to buy a car and invested the remainders in a bank that paid simple interest at a rate of 8% p.a. after 1½ years he sold the car at 25% less what she bought it. He also withdraw his money and interest from the bank
Calculate;
(a) Amount the trader invested in the bank.
(b) Amount he sold the car.
(c) Amount he withdrew from the bank.
(d) The percentage of the initial amount he had after selling the car and withdrawing all the amount
Date posted:
September 30, 2019
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Describe THREE computer crimes taking place in society citing control measures that can be put in place to curb them.
Date posted:
September 30, 2019
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The figure below shows a bulb hydrometer.
i) State the principle in the hydrometer.
ii) Explain why the hydrometer has a weighted bulb and narrow stem.
Date posted:
September 30, 2019