D. lost an electron
because they have free electron in the outermost shell which they will like to denote, in order to attain stable configuration
Answer:
Explanation:
The tension in a cable is given by:
Where 
is the mass density of the cable and v is the speed of the cable's pulse. These values are defined as:
The pulse makes four trips down and back along the cable, so 
Replacing (2) and (3) in (1), we calculate the tension in the cable:
Answer:
m₂ = 3kg
Explanation:
The question wasn't clear about what direction the initial velocity of the second cart was, so I'll assume it was going left at 2.0m/s.
Anyway, this is a conservation of momentum problem. The equation you need to use is the one written in blue. They want you to solve for the mass of the second cart, so do some algebra and rearrange that blue equation in term of m₂.
Now that you have the equation for m₂, plug in all the values given from the question and you'll get 3kg.
Answer:
C) must be such as to follow the magnetic field lines.
Explanation:
Ampere's circuital law helps us to calculate magnetic field due to a current carrying conductor. Magnetic field due to a current forms closed loop around the current . If a net current of value I creates a magnetic field B around it , the line integral of magnetic field around a closed path becomes equal to μ₀ times the net current . It is Ampere's circuital law . There may be more than one current passing through the area enclosed by closed curve . In that case we will take net current by adding or subtracting them according to their direction.
It is expressed as follows
∫ B.dl = μ₀ I . Here integration is carried over closed path . It may not be circular in shape. The limit of this integration must follow magnetic field lines.
the term ∫ B.dl is called line integral of magnetic field.
Answer:
it cools down the cancer cells
Explanation:
The cancer cells are rapidly reproducing and when you cool it down it slows down the mutation/ reproduction process.
