Joey is conducting an experiment in which he measures how far a rubber ball flies when launched at different angles. which lab tool will allow joey to record his results?

Avariable that is not being directly tested during an experiment should be

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m