Answer:
The corresponding dimensions will be "x = 300 & y = 60".
Explanation:
Available fencing = 600 ft
Fencing,
⇒ 
⇒ 
As we know,
⇒ 
On substituting the given values, we get
...(equation 1)
On differentiating with respect to y, we get
⇒ 
On putting the values of y in equation 1, we get
⇒ 
⇒ 
⇒ 
⇒ 
Dimensions of the rectangular area:
x = 300
y = 60
Answer:
a sound wave is an electromagnetic wave
The isotopes of a element is defined as the atoms having same atomic number and different mass number.
As per periodic table Br has atomic umber Z=35 and its atomic mass is given as 79.904 or 79.
As per the question nothing has been mentioned .
so all the atoms whose atomic number will correspond to 35 will be considered as the isotope of bromine.
Generally Bromine exhibits two isotopes which are stable.The isotopes are Bromine-81 and Bromine-77.
Some times during the process of gamma decay Bromine forms many radio isotopes also which are unstable.
Nuclear fusion and gravitational contraction
<span>constituent of star is hydrogen(including isotope) or helium. nuclear fission is almost impossible. D(deuterium; isotope of hydrogen) and T(tritium; also isotope of hydrogen) reacts and helium is formed. During this reaction, severe energy is generated. Heavier elements are formed and pulls each other. Gathered elements forms core of star. Gravity of the core prevents the gas to run away.</span>
