Answer:
v = 16.11 m / s
Explanation:
For this exercise we must use the principle of conservation of energy. We set a reference system on the part of the platform without elongation
starting point. When the spring is compressed
Em₀ = K_e + U = ½ k x² + m g x ’
final point. The point where it leaves the platform
Em_f = K = ½ m v²
energy is conserved
Em₀ = Em_f
½ k x² + m g x ’= ½ m v²
v² = x² + g x
let's calculate
v² = 1.25² + 9.8 1.25
v² = 247.159 + 12.25 = 259.409
v = 16.11 m / s
The mitochondria is the powerhouse of the cell because it takes nutrients and breaks it down to provide energy for the cell.
Answer:
The noun agony means acute pain — either mental or physical, but people often use the word hyperbolically: "This paper cut is agony." The noun agony is also used in the common phrase "the thrill of victory and the agony of defeat," which has been the tag-line of ABC's Wide World of Sports for decades.
Explanation:
Answer:
Hydrogen nuclei fuse to form a larger nucleus, and a small amount of mass is converted into energy.
G=(G*M)/r²
g-acceleration due the gravity, g=?
G-the universal gravitational constant, G=6.673x10^(-11)N*m²/kg²
M-the mass of the earth, M=5.98x10^(24)kg
r-the radius of the earth, r=6370km=6370000m
g=(6.673x10^(-11)N*m²/kg²)*(5.98x10^(24)kg)/(6370000m)²
g=9.834m/s²