Explanation

Explanation

Boltzmann's constant (k_B) is a fundamental constant in physics.

The value of Boltzmann's constant is 1.38 × 10^(-23) J/K.

Explanation

The time period T of a simple pendulum is given by: T = 2π√L/g

It depends on length (L) and acceleration due to gravity (g), but is independent of mass.

Explanation

Former prime minister of Pakistan Benazir Bhutto

She was the author of an autobiography titled Daughter of the East 

Publisher Simon & Schuster

Publication date 7 January 1989

****

Explanation

Heat is a form of energy, specifically thermal energy, which is transferred from one body to another due to a temperature difference.

It is a type of kinetic energy, where the particles of a substance vibrate or move rapidly, generating heat.

Explanation

Momentum is given by the formula: p = mv, where m is mass and v is velocity (or speed).

It depends on mass and speed, not on acceleration, so momentum is independent of acceleration.

Explanation

Force = Change in momentum / Time (from Newton’s second law).

So, change in momentum in one second is defined as force.

Explanation

Adept means ماہر

Skilled means ماہر

Proficient means کسی کام میں ہنر مند یا اہل

Explanation

Vice means غیر اخلاقی یا برا سلوک

Virtue means اخلاقی فضیلت یا نیکی

Explanation

The atomic mass of sodium (Na) is approximately 23 atomic mass units (amu).

It is based on the sum of protons and neutrons in its most common isotope.