Using data and observations, answer the following questions. Did it seem, that the mass of each 1 cm2 of paper would have the same mass? Explain your response.
How many pieces of 1 cm2 paper would it take to reach the fifth mark on the scale? Show your rationale.
Assume each mark on the scale represented 1 g. Estimate how much a sheet of paper would mass. A sheet of paper is 28 cm by 21.7 cm.
The actual mass of a sheet of copy paper is 4.5 g. What must be the actual mass of a 1 cm2 piece of copy paper? Show your calculations.

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

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000