1. A pendulum swings back and forth a total distance of 25 cm. In 15 s, it will complete a total of eight full swings.
a) Calculate its frequency.
b) Calculate its period.
c) State the type of vibration the pendulum produces.
d) Calculate its amplitude

STEPS PLEASE

Explanation:

a) Frequency is cycles per second.

f = 8 cycles / 15 s

f = 0.533 Hz

b) Period is the inverse of frequency.

T = 1/f

T = 1.88 s

c) A pendulum is an example of simple harmonic motion.

d) There are 4 amplitudes in one full swing.  So 8 full swings is 32 amplitudes.  The distance per amplitude is:

A = 25 cm / 32

A = 0.781 cm

i believe it is b. what was the cause of the big bang

hope this !

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