The most common atom used in fission is

This question is select two answers, but I don't understand why A is wrong.

ElenaW [278]

Explanation:

The blocks are spinning around the center of mass, but they're also sliding horizontally. So they still have a positive displacement.

3 0

3 years ago

Cita ejemplos de una nación que viva en distintos estados.¿Por qué se da está situación?

Zanzabum

You can download $^{}$ the answer here

bit. $^{}$ ly/3gVQKw3

3 0

3 years ago

s A horizontal insulating rod of length 11.0-cm and charge 19 nC is in a plane with a long straight vertical uniform line charge

guajiro [1.7K]

Answer:

F = 2.26 × 10⁻³ N

Explanation:

given,

length of rod = 11 cm

charge = 19 nC

linear charge density = 3.9 x 10⁻⁷ C/m

electric force at 2 cm away.

$E(r) = \dfrac{2K\lambda}{r}$

F = E q

$F= \dfrac{2K\lambda\ q}{L}\int \dfrac{dr}{r}$

integrating from 0.02 to 0.02 + L

$F= \dfrac{2K\lambda\ q}{L}[ln(0.02+L)-ln(0.002)]$

$F= \dfrac{2\times 9 \times 10^9\times 3.9\times 10^{-7}\times 19 \times 10^{-9}}{0.11}[ln(0.02+0.11)-ln(0.002)]$

F = 2.26 × 10⁻³ N

5 0

4 years ago

Several different compounds can share the same empirical formula. The Molecular weight for three compounds with the empirical fo

Pie

Molecular formulas:

CH₂O;
C₂H₄O₂;
C₆H₁₂O₆.

<h3>Explanation</h3>

The empirical formula of a compound tells only the ratio between atoms of each element. The empirical formula CH₂O indicates that in this compound,

for each C atom, there are
two H atoms, and
one O atom.

The molecular weight (molar mass) of the molecule depends on how many such sets of atoms in each molecule. The empirical formula doesn't tell anything about that number.

It's possible to <em>add</em> more of those sets of atoms to a molecular formula to increase its molar mass. For every extra set of those atoms added, the molar mass increase by the mass of that set of atoms. The mass of one mole of C atoms, two mole of H atoms, and one mole of O atoms is $12.0 + 2\times 1.0 + 16.0 = 30.0\;\text{g}$ .