Con lắc lò xo bao gồm vật nặng khối lượng m=100g và lò xo có độ cứng K=100 N/m dao động điều hoà với chu kì

Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest

The heliocentric and the geocentric models of the solar system included these central principles

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?