Physics It is easier to roll a barrel full of coal tar than to pull it because 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 the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled 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 the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled ANSWER DOWNLOAD EXAMIANS APP
Physics The direction of heat flow between two objects depends on Their temperatures Whether they are in solid, liquid or gaseous state Their heat contents Their masses Their temperatures Whether they are in solid, liquid or gaseous state Their heat contents Their masses ANSWER DOWNLOAD EXAMIANS APP
Physics Alcohol is more volatile than water because ________ is lower than water. Its density Its surface tension Its viscosity Its boiling point Its density Its surface tension Its viscosity Its boiling point ANSWER DOWNLOAD EXAMIANS APP
Physics Water from soil enters into the root hairs owing to : Atmospheric pressure Root pressure Capillary pressure Osmotic pressure Atmospheric pressure Root pressure Capillary pressure Osmotic pressure ANSWER DOWNLOAD EXAMIANS APP
Physics In the absence of ozone layer, which rays will enter into atmosphere? Visible Infrared X-rays Ultraviolet Visible Infrared X-rays Ultraviolet ANSWER DOWNLOAD EXAMIANS APP
Physics Light travels at the fastest speed in: vacuum hydrogen glass water vacuum hydrogen glass water ANSWER DOWNLOAD EXAMIANS APP
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