An apple is kept inside a glass jar. The lid of the jar is screwed on tightly and tape is stuck along the edge of the lid, sealing the jar. The jar (with the apple) is weighed and the weight (W1) is noted. It is kept on a table undisturbed. After a week, the apple has rotted and has shrunk. Now the jar (with the apple) is weighed again (W2). Which of the following is true about the two weights of the jar with the apple, i. e. W1 and W2? * (1 Point) O 1.Both weights(W1 and W2) are the same.

2. Weight taken before rotting (W1) is less than the weight taken after rotting.

3. Weight taken before rotting (W1) is more than the weight taken after rotting.

4. We cannot say unless we know the actual values.

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

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2