Answer:
the object is called Newton's cradle balance ball you can search it on Google
components of the speed of the coin is given as




now the time taken by the coin to reach the plate is given by



now in order to find the height



so it is placed at 1.52 m height
It's called covelant bonding
Hi there! When a shadow is at its shortest is at noon when the sun is overhead.
Gravity is the force that attracts to bodies toward each other friction is the resistance from one thing to another