An experiment is conducted to determine how the arm length of a pendulum affects its period. the experimental design calls for varying the length of the arm and the mass of the bob. which is true about this experiment, based on good experimental design?

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!