Which of the following is true of giovanni pierluigi da palestrina’s pope marcellus mass?
a. it demonstrates the protestant practice of simple congregational singing
b. the text is in palestrina’s native language of italian
c. all the parts were originally sung by men and boys
d. it was banned by the council of trent 1

c is true

Explanation: the boy choirstars sang the soprano and alto. Although Palestrina choir is made up of six voice part of soprano, alto, tenor, baritone and bass and the choir sings without instruments.

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j