3.
me(2 mkandle
The diagram below shows the essential features of a solar heating panel. A sm...
3.
me(2 mkandle
The diagram below shows the essential features of a solar heating panel. A small electric pump circulates the
liquid through the pipes.
Glass plate
Metal plate
Pipes
Air space
Material fibre glass
State briefly why:
The pipes and metal plates are blackened.
(ii) There is a material fibre glass on the panel.
(1mk)
(1mk)β
Answers: 1
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Which atomic model was proposed as a result of j. j. thomsonβs work?
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Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
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