An object of mass 100g projected vertically upwards from the ground level has a velocity of 20m/s at a height of 10m. Calculate the initial kinetic energy at the ground level.​

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

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

Frequency of electromagnetic waves that a radio station is assigned is called