GradePack

    • Home
    • Blog
Skip to content
bg
bg
bg
bg

GradePack

K-means is an iterative algorithm where some steps are repea…

K-means is an iterative algorithm where some steps are repeated. What steps are repeated in a complete execution of K-means?

Read Details

A 3.2-L volume of neon gas (Ne) is at a pressure of 4.7 atm…

A 3.2-L volume of neon gas (Ne) is at a pressure of 4.7 atm and a temperature of 400 K. The atomic mass of neon is 20.2 g/mol, Avogadro’s number is 6.022×1023 molecules/mol, and the ideal gas constant is R= 8.314 J/(mol·K) = 0.0821 L·atm/(mol·K). The mass of the neon gas is closest to

Read Details

The ideal clustering results should ___

The ideal clustering results should ___

Read Details

The wave function of an electron in a rigid box (infinite we…

The wave function of an electron in a rigid box (infinite well) is shown in the figure. If the electron energy is 93 eV, what is the energy of the electron’s ground state? (mel = 9.11 x 10-31 kg)       

Read Details

The figure (not to scale) shows a pV diagram for 9.2 g of he…

The figure (not to scale) shows a pV diagram for 9.2 g of helium gas (He) that undergoes the process 1 → 2 → 3. Find the value of V3. The ideal gas constant is R = 8.314 J/(mol·K) = 0.0821 L·atm/(mol·K), and the atomic weight of helium is 4.0 g/mol.  

Read Details

The wave function of an electron in a rigid box (infinite we…

The wave function of an electron in a rigid box (infinite well) is shown in the figure. If the electron energy is 85 eV, what is the energy of the electron’s ground state? ( mel= 9.11 x 10-31 kg )       

Read Details

The wave function of an electron in a rigid box (infinite we…

The wave function of an electron in a rigid box (infinite well) is shown in the figure. If the electron energy is 123 eV, what is the energy of the electron’s ground state? ( mel= 9.11 x 10-31 kg )       

Read Details

What are the two dimensions (rows and columns) of the utilit…

What are the two dimensions (rows and columns) of the utility matrix in recommendation systems?

Read Details

Feature normalization is an important step before applying t…

Feature normalization is an important step before applying the K-means algorithm. What is the reason behind this?

Read Details

A 2.0-eV electron is incident on a 0.20-nm barrier that is 5…

A 2.0-eV electron is incident on a 0.20-nm barrier that is 5.67 eV high. What is the probability that this electron will tunnel through the barrier? (1 eV = 1.60 × 10-19J, mel= 9.11 × 10-31kg, ℏ= 1.055 × 10-34J·s, h= 6.626 × 10-34 J·s)  

Read Details

Posts pagination

Newer posts 1 … 27,166 27,167 27,168 27,169 27,170 … 79,499 Older posts

GradePack

  • Privacy Policy
  • Terms of Service
Top