A frictionless pendulum with a mass of 0.4 kg and a length of 2.1 m starts at point A, at an angle θ of 60°. As it swings downward, it passes through point B, which is 30 degrees from equilibrium. What is the kinetic energy of the pendulum at point B?

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

The dot diagram represents the motion of the motorcycle as it moves from left to right

Arrange the images in order to show how lake-effect snow occurs.