Answer:

Explanation:
Volume can be found by dividing the mass by the density.

The mass is 100 grams and density is 0.920 grams per cubic centimeters.
Therefore,

Substitute the values into the formula.

Divide. Note that the grams, or "g" will cancel each other out.

The volume of the ice cube is 108.697652 cubic centimeters.
Answer:
2) Signal #2 is a digital signal that transmits signals in segments/intervals.
Explanation:
Signals are form of information propagating from the source to a display unit for appropriate interpretation. It can be either in a digital or analogue form.
A digital signal is a definite signal which is discrete in time and amplitude. It is mostly in the form of codes obtained from set of values. Graphically it transmits in the form of 1 and 0, showing a point of maximum amplitude (1) and minimum amplitude (0).
Analog signal is continuous signal describing the variation of two variables with respect to time.
Answer:

Explanation:
As we know that the electrostatic force is a based upon inverse square law
so we have

now since it depends inverse on the square of the distance so we can say

now we know that


also we know that

now from above equation we have


