This is a single point in an object where the net gravitational pull acts.
chrispohmomanyi answered the question on September 21, 2017 at 12:16
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Name three points that lie along the principal axis.
Date posted: September 21, 2017. Answers (1)
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State the difference between images formed by concave mirrors and plane mirrors.
Date posted: September 21, 2017. Answers (1)
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What is the difference between real and virtual images?
Date posted: September 21, 2017. Answers (1)
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State why convex mirrors are used as driving mirrors?
Date posted: September 21, 2017. Answers (1)
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What is spring constant?
Date posted: September 21, 2017. Answers (1)
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Define the term wavelength.
Date posted: September 21, 2017. Answers (1)
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A trolley of mass 0.5kg moving with a velocity of 1.2ms-1 collides inelastically with a second trolley of mass 1.5kg moving in the same direction with a velocity of 0.2ms-1. Determine the velocity of the trolleys after collission .
Date posted: September 21, 2017. Answers (1)
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Date posted: September 20, 2017. Answers (1)
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Date posted: September 20, 2017. Answers (1)
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Why is the metre bridge method a more accurate means of measuring resistance than Ammeter-voltmeter method.
Date posted: September 20, 2017. Answers (1)
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State one reason why mercury is preferred as a barometric liquid and not water.
Date posted: September 20, 2017. Answers (1)
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Highlight one fact which shows that heat from the sun does not reach the earth's surface by
convection.
Date posted: September 20, 2017. Answers (1)
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A body in a uniform circular motion experiences acceleration despite moving at a constant
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Date posted: September 20, 2017. Answers (1)
- Calculate the length of a wire required to make a resistor of 0.5 ohms, if the receptivity of the
material is 4.9 x 10^-7 ohm m...(Solved)
Calculate the length of a wire required to make a resistor of 0.5 ohms, if the receptivity of the
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Date posted: September 19, 2017. Answers (1)
- The activity of a radioactive substance, initially at 400 counts per second reduces to 50 counts per
second in 72 minutes. Determine the half – life...(Solved)
The activity of a radioactive substance, initially at 400 counts per second reduces to 50 counts per
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Date posted: September 19, 2017. Answers (1)
- The primary coils of a transformer has 2000 turns and carries a current of 3A. If the secondary coil
is designed to carry a current of...(Solved)
The primary coils of a transformer has 2000 turns and carries a current of 3A. If the secondary coil
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Date posted: September 19, 2017. Answers (1)
- A heating coil rated 1000 W takes 15 minutes to heat 20kg of a liquid from 26^o C of 42^o C.
Determine the specific heat capacity...(Solved)
A heating coil rated 1000 W takes 15 minutes to heat 20kg of a liquid from 26^o C of 42^o C.
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Date posted: September 19, 2017. Answers (1)
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(Solved)
Give one example of a semiconductor and one for a conductor
Date posted: September 19, 2017. Answers (1)
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Distinguish between semiconductor and conductors
Date posted: September 19, 2017. Answers (1)
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Which instrument which can be used to measure the thickness of the hair.
Date posted: September 19, 2017. Answers (1)