Your lab group of three students are asked to make various measurements. For this graduated cylinder, the entire group agrees that
the bottom of the water is directly on the line. Partner 1 states "Since the
water is directly on the line, 21.7 mL is an acceptable measurement."
Partner 2 states, "I disagree, I believe 21.70 mL is a better measurement." It
is up to you to settle the dispute. Who, if either, is correct and why?

the answer is b ) square root of 5

the answer is mosques. they are an important part of islamic culture.

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