Physics It is easier to roll a barrel full of coal tar than to pull it because the full weight of the barrel comes into play when it is pulled more surface area of the barrel is in contact with the road when it is pulled the rolling friction is much less than the sliding friction coal tar is a liquid and it flows in the barrel when it is rolled the full weight of the barrel comes into play when it is pulled more surface area of the barrel is in contact with the road when it is pulled the rolling friction is much less than the sliding friction coal tar is a liquid and it flows in the barrel when it is rolled ANSWER DOWNLOAD EXAMIANS APP
Physics What happens to a liquid, when the vapour pressure equals the atmospheric pressure? The liquid cools The liquid boils The liquid evaporates No change The liquid cools The liquid boils The liquid evaporates No change ANSWER DOWNLOAD EXAMIANS APP
Physics A doppler effect occurs when a source of sound moves Both A & B Towards you None of these Away from you Both A & B Towards you None of these Away from you ANSWER DOWNLOAD EXAMIANS APP
Physics At what temperature (in Fahrenheit) pure water freezes? 37 32 48 37 32 48 ANSWER DOWNLOAD EXAMIANS APP
Physics The term ''equinox' means The path which the Earthtakes around the Sun The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The axis of the Earth around which it rotates When the day and night are of equal duration The path which the Earthtakes around the Sun The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The axis of the Earth around which it rotates When the day and night are of equal duration ANSWER DOWNLOAD EXAMIANS APP
Physics The locomotion of insects to the source of light is called : Phototropic Thermotactic Phototactic Hydrotropic Phototropic Thermotactic Phototactic Hydrotropic ANSWER DOWNLOAD EXAMIANS APP
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