2kg objects in the world of a hunting group
Answer:
The warm seas create a large humid air mass. The warm air rises and forms a low pressure cell, known as a tropical depression.
Explanation:
Hurricanes arise in the tropical latitudes (between 10 degrees and 25 degrees N) in summer and autumn when sea surface temperature are 28 degrees C (82 degrees F) or higher.
Answer:
(a). The strength of the magnetic field is 0.1933 T.
(b). The magnetic flux through the loop is zero.
Explanation:
Given that,
Radius = 11.9 cm
Magnetic flux ![\phi=8.60\times10^{-3}\ T m^2](https://tex.z-dn.net/?f=%5Cphi%3D8.60%5Ctimes10%5E%7B-3%7D%5C%20T%20m%5E2)
(a). We need to calculate the strength of the magnetic field
Using formula of magnetic flux
![\phi=BA\cos\theta](https://tex.z-dn.net/?f=%5Cphi%3DBA%5Ccos%5Ctheta)
![\phi=BA\cos0](https://tex.z-dn.net/?f=%5Cphi%3DBA%5Ccos0)
![\phi=BA](https://tex.z-dn.net/?f=%5Cphi%3DBA)
![B=\dfrac{\phi}{A}](https://tex.z-dn.net/?f=B%3D%5Cdfrac%7B%5Cphi%7D%7BA%7D)
![B=\dfrac{\phi}{\pi r^2}](https://tex.z-dn.net/?f=B%3D%5Cdfrac%7B%5Cphi%7D%7B%5Cpi%20r%5E2%7D)
Put the value into the formula
![B=\dfrac{8.60\times10^{-3}}{\pi\times(11.9\times10^{-2})^2}](https://tex.z-dn.net/?f=B%3D%5Cdfrac%7B8.60%5Ctimes10%5E%7B-3%7D%7D%7B%5Cpi%5Ctimes%2811.9%5Ctimes10%5E%7B-2%7D%29%5E2%7D)
![B=0.1933\ T](https://tex.z-dn.net/?f=B%3D0.1933%5C%20T)
(b). If the magnetic field is directed parallel to the plane of the loop,
We need to calculate the magnetic flux through the loop
Using formula of flux
![\phi=BA\cos\theta](https://tex.z-dn.net/?f=%5Cphi%3DBA%5Ccos%5Ctheta)
Here, ![\theta=90^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%3D90%5E%7B%5Ccirc%7D)
![\phi=BA\cos90](https://tex.z-dn.net/?f=%5Cphi%3DBA%5Ccos90)
![\phi=0](https://tex.z-dn.net/?f=%5Cphi%3D0)
Hence, (a). The strength of the magnetic field is 0.1933 T.
(b). The magnetic flux through the loop is zero.
Answer:
Explanation:
Ions are formed when an atom of an element that lacks stable configuration or octet configuration, looses or gains electrons to attain stability.
Magnesium atom contains 12 electrons, with an electron configuration of 2:8:2. Therefore, it requires to loose two electrons to attain stability, thus forming an ion. During ion formation, the number of protons and neutrons are not affected thus they do not change.
Therefore; Magnesium atom contain 12 electrons, 12 protons and 12 Neutrons. While magnesium atom contains 12 protons, 10 electrons, and 12 neutrons.
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