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 Which determines the frequency of a sound wave? Source Amplitude Speed Medium Source Amplitude Speed Medium ANSWER DOWNLOAD EXAMIANS APP
Physics During the motion of a projectile fired from the earth surface, ________ Horizontal component of its velocity remains constant Its momentum remains constant Its kinetic energy remains constant Vertical component of its velocity remains constant Horizontal component of its velocity remains constant Its momentum remains constant Its kinetic energy remains constant Vertical component of its velocity remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics Large astronomical telescopes always use as objective None of these combinations of lenses mirror lens None of these combinations of lenses mirror lens ANSWER DOWNLOAD EXAMIANS APP
Physics Planets do not twinkle because They are nearer to earth and hence we receive a greater amount of light. They are very far away from the earth resulting in decrease in intensity of light Their distance from the earth does not change with time They emit light of a constant intensity They are nearer to earth and hence we receive a greater amount of light. They are very far away from the earth resulting in decrease in intensity of light Their distance from the earth does not change with time They emit light of a constant intensity ANSWER DOWNLOAD EXAMIANS APP
Physics In a particular system, the units of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalent to 10 N 0.1 N 1 N 100 N 10 N 0.1 N 1 N 100 N ANSWER DOWNLOAD EXAMIANS APP
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