An oscillating system — Please helppp!
An oscillating system —
a) produces waves
b) transfers mass
c)reduces pressure
d) absorbs energy

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

The plum pudding model of the atom states that ?

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?