ACTIVITY 3. Given the following data table, solve for mean, standard deviation and variance. Then write the correct measurement of the physical quantity.
Table 1: measurement of volume of a liquid 25.60mL 21.30mL 30.16ml 28.70mL
mean, x=
standard deviation, o = variance, oʻ=
volume of a liquid
Table 2: measurement of mass of an irregularly shaped stone 0.0388 0.040g 0.036g 0.0428
mean,
standard deviation,
variance,
mass of a stone

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.