Carbon-14 is a naturally occurring carbon isotope.
Carbon-14 has a known half-life.
Carbon-14 is present in all living organisms.
Answer:
0.69 ohm
Explanation:
Heat generated per second, H = 50 cal/s
Potential difference, V = 12 V
Let R is the resistance of coil.
The formula for the heat is given by
![H = \frac{V^{2}}{R}t](https://tex.z-dn.net/?f=H%20%3D%20%5Cfrac%7BV%5E%7B2%7D%7D%7BR%7Dt)
![50\times 4.186 = \frac{12^{2}}{R}\times 1](https://tex.z-dn.net/?f=50%5Ctimes%204.186%20%3D%20%5Cfrac%7B12%5E%7B2%7D%7D%7BR%7D%5Ctimes%201)
R = 0.69 ohm
Answer:
v = wavelength * frequency
frequency = 5200 m/s / .2 m = 26000 / sec
20,000 / sec is optimistic for the upper frequency of human hearing
So 26,000 is above the hearing range for human ears
Answer:
A mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation
Explanation: