Explanation

Explanation

Explanation

Given:

Energy of photon (E) = 4.1 MeV

The total energy available for the electron and positron is:

E - 2 × 0.511 MeV = 4.1 MeV - 1.022 MeV = 3.078 MeV

Since the electron and positron share the energy equally, the kinetic energy of the electron is:

3.078 MeV / 2 = 1.539 MeV

Adding the rest mass energy of the electron (0.511 MeV), we get:

Energy of electron = 1.539 MeV + 0.511 MeV = 2.05 MeV

Explanation

The organization that led a $1.5 billion aid package for Pakistan’s flood relief efforts in 2022-2023 is the World Bank.

The World Bank played a significant role in providing financial assistance to Pakistan to address the devastating impacts of the floods.

The aid package was aimed at supporting recovery, reconstruction, and resilience-building efforts in the affected areas.

Explanation

Explanation

Explanation

Explanation

Explanation

The correct phrase should be "of their bodies" because "slugs and snails" are plural.

So the possessive pronoun should also be plural ("their" instead of "its").

The corrected sentence would be:

"Most slugs and snails breathe using a lung which opens through a small hole in the side of their bodies."

Explanation

The order of reaction is defined as the sum of the powers of the concentration terms in the rate law equation.

It shows how the reaction rate depends on the concentrations of reactants.