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 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 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 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 more surface area of the barrel is in contact with the road when it is pulled ANSWER DOWNLOAD EXAMIANS APP
Physics What is the resistance (in ohm) of an electrical component if a current of 0.1 A passes through it on application of 5 V of potential difference across it? 0.5 50 100 1 0.5 50 100 1 ANSWER DOWNLOAD EXAMIANS APP
Physics Outside of cooking utensils are generally left black from below because Black surface is a good absorber of heat. It is difficult to clean daily. Black surface is a poor conductor of heat. Black surface is a good conductor of heat. Black surface is a good absorber of heat. It is difficult to clean daily. Black surface is a poor conductor of heat. Black surface is a good conductor of heat. ANSWER DOWNLOAD EXAMIANS APP
Physics Echo is heard due to Reflection Scattering Refraction Interference Reflection Scattering Refraction Interference ANSWER DOWNLOAD EXAMIANS APP
Physics The work done by the string of a simple pendulum during one complete oscillation is equal to Potential energy of the pendulum Total energy of the pendulum Zero Kinetic energy of the pendulum Potential energy of the pendulum Total energy of the pendulum Zero Kinetic energy of the pendulum ANSWER DOWNLOAD EXAMIANS APP
Physics What is the source of energy for the water cycle? Animals Rain water Clouds Sun Animals Rain water Clouds Sun ANSWER DOWNLOAD EXAMIANS APP
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