1. Prevents unwanted flow of charges between the positive end (brass cap) and the negative end (metal casing)
2. Supports the gold leaf.
chrispohmomanyi answered the question on October 9, 2017 at 10:59
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State three methods of demagnetization
(Solved)
State three methods of demagnetization
Date posted:
October 9, 2017
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Answers (1)
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State four methods of magnetization.
(Solved)
State four methods of magnetization.
Date posted:
October 9, 2017
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Answers (1)
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Define dispersion as used in refraction.
(Solved)
Define dispersion as used in refraction.
Date posted:
October 9, 2017
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Answers (1)
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Define the absolute refractive index of a medium.
(Solved)
Define the absolute refractive index of a medium.
Date posted:
October 9, 2017
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Answers (1)
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State the main disadvantage of convex mirrors.
(Solved)
State the main disadvantage of convex mirrors.
Date posted:
October 9, 2017
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Answers (1)
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State two applications of lens.
(Solved)
State two applications of lens.
Date posted:
October 8, 2017
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Answers (1)
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State any three disadvantages of a liquid in glass thermometers
(Solved)
State any three disadvantages of a liquid in glass thermometers
Date posted:
October 8, 2017
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Answers (1)
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State any three types of thermometers
(Solved)
State any three types of thermometers
Date posted:
October 8, 2017
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Answers (1)
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A hockey player hits a ball mass 0.8 kg initially at rest using a force of 840 N. if the hockey stick was in contact...
(Solved)
A hockey player hits a ball mass 0.8 kg initially at rest using a force of 840 N. if the hockey stick was in contact with the ball for 0.2 seconds, what was the speed the ball took off with?
Date posted:
October 6, 2017
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Answers (1)
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A boy jumped from a platform and landed on a mattress. Explain how the mattress helps in reducing the force of impact.
(Solved)
A boy jumped from a platform and landed on a mattress. Explain how the mattress helps in reducing the force of impact.
Date posted:
October 6, 2017
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Answers (1)
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Water has a refractive index of 1.35. Determine the speed of light in water given that the speed light in air is 3.0 x 10^8...
(Solved)
Water has a refractive index of 1.35. Determine the speed of light in water given that the speed light in air is 3.0 x 10^8 m/s
Date posted:
October 6, 2017
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Answers (1)
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A lawn tennis ball of mass 300 g is thrown vertically upwards with a vertically of 10 m/s. The air cause a resistance of 10...
(Solved)
A lawn tennis ball of mass 300 g is thrown vertically upwards with a vertically of 10 m/s. The air cause a resistance of 10 m/s. The air caused a resistance of 0.5 N.
Determine
a. The net force on the ball as it moves up. (Take g=10m/s)
b. The acceleration of the ball
c. The maximum height reached by the ball.
Date posted:
October 6, 2017
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Answers (1)
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A simple pendulum was used by a student to determine the acceleration due to gravity, g, she obtained the following values: L = 80.0 cm,...
(Solved)
A simple pendulum was used by a student to determine the acceleration due to gravity, g, she obtained the following values: L = 80.0 cm, the period T was 1.9s. given that T=2π√(l/g) determine the value of g correct to two significant figures.
Date posted:
October 6, 2017
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Answers (1)
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A bullet hit a tree trunk of diameter 100 cm at a velocity of 500 m/s, emerging from the other opposite side with a velocity...
(Solved)
A bullet hit a tree trunk of diameter 100 cm at a velocity of 500 m/s, emerging from the other opposite side with a velocity of 200 m/s. Determine the average deceleration of the bullet in the trunk.
Date posted:
October 6, 2017
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Answers (1)
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State two types of potential energy
(Solved)
State two types of potential energy
Date posted:
October 6, 2017
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Answers (1)
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State any four sources of energy.
(Solved)
State any four sources of energy.
Date posted:
October 6, 2017
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Answers (1)
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State any four forms of energy.
(Solved)
State any four forms of energy.
Date posted:
October 6, 2017
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Answers (1)
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Define Energy.
(Solved)
Define Energy.
Date posted:
October 6, 2017
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Answers (1)
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State two types of fluid flow.
(Solved)
State two types of fluid flow.
Date posted:
October 6, 2017
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Answers (1)
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State two applications of Pressure
(Solved)
State two applications of pressure.
Date posted:
October 6, 2017
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Answers (1)