SHOW WORK A 2 kg basketball is being held at rest 1 m above the ground.
a. How much potential energy does the basketball have?
b. How much kinetic energy does the basketball have?
c. How much total mechanical energy does the basketball have?​

Not all tiles will be usedidentify the element present in each star based on the gaps observed in wavelengths of its light refer to this table containing absorption wavelengths (in nm) of several different elements the table ishelium 447, 502 ,587 ,668carbon 427 ,515, 600 ,678sulfur 425, 565, 639, 675xenon 484, 590, 687calcium 429 ,527, 593, 645silver 421 ,521, 662

How do you tell if someone actually cares about you? and just say they do?

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •