Describe how the current amplitude varies as the angular frequency of the source is slowly reduced from 1000 to 500 .

a-Amplitude is always constant.

b-Amplitude decreases.

c-Amplitude increases.

d-First amplitude increases next it decreases.

e-First amplitude decreases next it increases.

a - Amplitude is always constant.

Explanation:

In Simple Harmonic Movement, amplitude and angular frequency are independent to each other. Hence, the right answer is A.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

pe = weightxheight = 2000x1000=2,000,000joules