A block m1 of mass 5 kg moving at 10 m / s to the right collides with another block m2 of equal mass that was at rest on a horizontal plane without friction. Which of the following is not possible after the crash? a. M1 remains at rest and m2 is moving at 10 m/s to the right.
b. M1 moves 4 m/ to the right and m2 moves 6 m/s to the right.
c. M1 moves 2 m/s to the left and m2 moves 8 m/s to the right.
d. M1 and m2 move together 5 m/s to the right.
e. M1 moves 5 m/s to the left and m2 moves 15 m/s to the right.

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

unbalanced force

explanation:

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