Physics Why does a cannon recoil after firing ? Newton's third law of motion Backward thrust of gases produced Newton's first law of motion Conservation of energy Newton's third law of motion Backward thrust of gases produced Newton's first law of motion Conservation of energy ANSWER DOWNLOAD EXAMIANS APP
Physics A radioactive substance does not undergo any change (in mass or charge) during Alpha-emission Gamma-emission Beta-emission Oxidation Alpha-emission Gamma-emission Beta-emission Oxidation ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because 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 more surface area of the barrel is in contact with the road when it is pulled ANSWER DOWNLOAD EXAMIANS APP
Physics What is the escape velocity of the rocket in the earth? 10.2 km/sec 13.2 km/sec 12.2 km/sec 11.2 km/sec 10.2 km/sec 13.2 km/sec 12.2 km/sec 11.2 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a compound machine? Bicycle Knife Ramp Screw Bicycle Knife Ramp Screw ANSWER DOWNLOAD EXAMIANS APP
Physics What is another name for energy of motion? Kinetic energy Motional energy Rotational energy Potential energy Kinetic energy Motional energy Rotational energy Potential energy ANSWER DOWNLOAD EXAMIANS APP
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