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 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 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 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 the rolling friction is much less than the sliding friction ANSWER DOWNLOAD EXAMIANS APP
Physics A gap is left between two rails of a railway track to accommodate...... of the metal. Volume expansion Areal expansion Linear expansion Apparent expansion Volume expansion Areal expansion Linear expansion Apparent expansion ANSWER DOWNLOAD EXAMIANS APP
Physics In ________ motion of a body its velocity varies with time. Uniform Non-uniform Linear Equilibrium Uniform Non-uniform Linear Equilibrium ANSWER DOWNLOAD EXAMIANS APP
Physics Energy per unit volume is dimensionally equal to Pressure Density Force Work Pressure Density Force Work ANSWER DOWNLOAD EXAMIANS APP
Physics The metal used to make lightning conductors is Zinc Iron Copper Aluminium Zinc Iron Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Physics When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the object's velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force? 6.33 N 4.33 N 3.33 N 5.33 N 6.33 N 4.33 N 3.33 N 5.33 N ANSWER DOWNLOAD EXAMIANS APP
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