As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.
Answer:
a) T = 0.579 s
, b) T = 0.579 s
Explanation:
The great advantage of wave mechanics is that the general equations for different systems are the same, what changes are the physical parameters involved, the equation of motion is
x = A cos (wt +φ)
Where w is the angular velocity that is this case for being a solid body is
w = √ (mg d / I)
Where I is the moment of inertia and d the distance to the pivot point
The moment of inertia for a ruler hold one end is
I = 1/12 M L²
The lost is related to the frequency and is with the angular velocity
T = 1 / f
w = 2π f
w = 2π / T
T = 2π / w
T = 2π √ I / mgd
For our case
d = L
T = 2π √(1/12 M L²) / M g L)
T = 2π √(L/(12 g))
a) wood suppose it is one meter long (L = 1m)
T = 2π √ (1 / (12 9.8))
T = 0.579 s
b) metal length (L = 1m)
T = 2pi RA (1 / (12 9.8))
T = 0.579 s
The period does not depend on mass but on length
Releasing any species into an environment it's not adapted to, or native to is dangerous because the species lacks the necessary adaptations to survive in the environment.
In the example of the frog, releasing it into a grassland would be a bad idea because the frog needs not only a "moist" area to thrive but it needs places to hide and plenty of insects to feed off of. Also, for reproduction it would need a pond, or some kind of water source!
I hope this is helpful!
Answer:
D-it's never acceptable to ignore rules and etiquette
Explanation: