Physics It is easier to roll a barrel full of coal tar than to pull it because 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 the rolling friction is much less than the sliding friction more surface area of the barrel is in contact with the road when it is pulled 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 the rolling friction is much less than the sliding friction more surface area of the barrel is in contact with the road when it is pulled ANSWER DOWNLOAD EXAMIANS APP
Physics Clouds float in the atmosphere because of their Low density Low viscosity Low temperature Low pressure Low density Low viscosity Low temperature Low pressure ANSWER DOWNLOAD EXAMIANS APP
Physics The value of coefficient of restitution in perfectly elastic collision is 0.5 1 2 0.5 1 2 ANSWER DOWNLOAD EXAMIANS APP
Physics On a stationary sail boat, air is blown from a fan attached to the boat. The boat moves in the same direction in which air blows moves in opposite direction in which the air is blown does not move spins around moves in the same direction in which air blows moves in opposite direction in which the air is blown does not move spins around ANSWER DOWNLOAD EXAMIANS APP
Physics Rolling friction is caused by ________ Power dissipation Gravity Non-elastic effects Buoyancy Power dissipation Gravity Non-elastic effects Buoyancy ANSWER DOWNLOAD EXAMIANS APP
Physics Alternating current is converted into direct current by a Dynamo Transformer Rectifier Oscillator Dynamo Transformer Rectifier Oscillator ANSWER DOWNLOAD EXAMIANS APP
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