If you want to double the kinetic energy of a gas molecule, by what factor must you increase its momentum? a) 16b) 2^(1/2)
c) 2d) 2*2^(1/2)e) 4

The linear momentum is given by the following equation:

  (1)

Where is the mass and the velocity.

On the other hand, the kinetic energy is given by:

  (2)

Which is the same as:

Now, if we double the kinetic energy, equation (2) changes to:

  (3)

So, if we want to obtain the kinetic energy as shown in (3), the only option that works is increasing momentum by a factor of or :

Applying this in (2):

>>>As we can see, this equation is the same as equation (3)

Therefore, the correct answer is B

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia