A simple pendulum is made of a mass mounted onto a rod. It oscillates at a frequency f. By what factor would the frequency of the pendulum change if the distance between the mass and the pendulum's pivot doubled，assuming the pendulum rod has negligible mass？

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

radiation

explanation:

heat is transmitted by radiation