Mr. Harris assigned his class the task to identify and order unknown liquids by their specific heat. Four liquids are heated at the same temperature setting for ten minutes. The temperature change of each sample is recorded in the table above. Order the unknown liquid samples by specific heat from lowest to highest. Temperature Change of Liquid Samples Sample Mass (grams) Start Temperature (°C) Ending Temperature (°C) 1 200 23 69 2 200 20 67 3 200 21 65 4 200 22 70 ITEM BANK: Move to Bottom 1234 1 2 3 4

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

third one with arrows on top of each other going the same direction