Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. the sticks are uniform and are identical in all respects, except that one is made of wood (mass=0.36 kg) and the other of metal (mass=0.83 kg) they are set into oscillation and execute simple harmonic motion. determine the period of (a) the wood pendulum and (b) the metal pendulum

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

spectral lines lyman is one set

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

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.