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.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.