A child with a mass of 23 kg rides a bike with a mass of 5.5 kg at a velocity of 4.5 m/s to the south. Compare the momentum of the child with the momentum of the bike.

See the comparison bellow

Explanation:

A child with a mass of 23 kg rides a bike with a mass of 5.5 kg at a velocity of 4.5 m/s to the south. Compare the momentum of the child with the momentum of the bike.

Step one:

given data

m1= 23kg

m2= 5.5kg

velocity of the child and the bike= 4.5m/s

Required

The momentum of the bike and that of the child is given bellow

Step two:

The momentum of the child

Pc=mv

Pc=23*4.5

Pc=103.5 kg⋅m/s

Step three:

The momentum of the bike

Pb=mv

Pb=5.5*4.5

Pb=24.75 kg⋅m/s

Its shows that the child has a higher momentum than the bike

the difference which is =103.5-24.75

=78.75kg⋅m/s

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

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