Describe the different components of a laser with suitable diagram. How does population inversion help in lasing?

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?