An inclined plans of inclination o has a lenght 15m, if a body rolle down the plans freely along the alonty the entire lenght with an acceleration 5m/ss. calculate
1.The angle of inclination o
2. The height of the plane. [g=10mbs]

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

no. dot product   =0 when vecs at right angles

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

i would say