Rachel Carson was the author of the acclaimed environmental book, Silent Spring. The book was published in 1962.
It documented the negative effect that synthetic pesticides have on the environment, specifically on birds.
This book laid bare to the American public what chemical companies indirectly contributed to the environment.
The public furor this book caused led to the reversal of the national pesticide policy, a nationwide ban on DDT for agricultural uses, and inspired the creation of the U.S. Environmental Protection Agency.
You can’t accelerate while moving backwards. This is false because you can accelerate while moving backwards.
Answer:
when an electron made a transition from an outer orbit to one closer to the nucleus
Explanation:
Bohr amended that view of the motion of the planetary electrons to bring the model in line with the regular patterns (spectral series) of light emitted by real hydrogen atoms. ... Light, he proposed, radiated from hydrogen atoms only
Answer:
Length of the string, l = 0.486 meters
Explanation:
It is given that,
Mass of the string,
Tension in the string, T = 120 N
Frequency of transverse wave, f = 260 Hz
Wavelength of the wave,
The speed of a transverse wave (v) is given by :
........(1)
<em>Where,</em>
Also, speed of a wave, .........(2)
From equation (1) and (2) :
l = 0.486 m
So, the length of the string is 0.486 meters. Hence, this is the required solution.