Suppose that 5 J of work is needed to stretch a spring from its natural length of 32 cm to a length of 46 cm. (a) How much work (in J) is needed to stretch the spring from 36 cm to 44 cm

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.

Which statements did both aristotle and ptolemy assume? check all that apply.

Aflute player hears four beats per second when she compares her note to a 523 hz tuning fork (the note c). she can match the frequency of the tuning fork by pulling out the “tuning join” to lengthen her flute slightly. what was her initial frequency?