Answer:
Una vibración se puede caracterizar por su frecuencia y su intensidad. La frecuencia es el número de veces que se completa un ciclo de oscilación y se mide en hercios (Hz). Un hercio equivale a un ciclo por segundo.
Explanation:
Answer:
2.447 × 10⁴ years
Explanation:
Step 1: Given data
- Half-life of the radioactive atom (t1/2): 3,500 years
- Parent-daughter ratio ([A]/[A]₀): 1:127 (1/127)
Step 2: Calculate the rate constant
Radioactive decay follows first-order kinetics. We can calculate the rate constant (k) using the following equation.
k = ln2 / (t1/2) = ln2 / 3,500 y = 1.980 × 10⁻⁴ y⁻¹
Step 3: Calculate the time elapsed (t)
For first-order kinetics, we will use the following expression.
ln ([A]/[A]₀) = -k × t
t = ln ([A]/[A]₀)/ (-k)
t = ln (1/127) / (1.980 × 10⁻⁴ y⁻¹) = 2.447 × 10⁴ y
D is correct. The cylinder's marking are closer together and are more precise.
The offspring is most likely all going to be black because if the black is dominant and the speckled is recessive, the black with cover up the speckled! Hope this helped!
