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

NO₂ (Nitrogen dioxide) is a covalent compound, made of nonmetals (nitrogen and oxygen) sharing electrons.

The others like (NH₄)₂CO₃, HNO₃, and AgCl involve ionic bonding either fully or in part (e.g., NH₄⁺ acts ionically).

Explanation

To simplify the expression (3⁸ × 3⁹)¹⁰:

Step 1: Apply the rule of exponents for multiplication.

3⁸ × 3⁹ = 3⁸⁺⁹ = 3¹⁷

Step 2: Apply the power rule of exponents.

(3¹⁷)¹⁰ = 3¹⁷⁰

Explanation

Raak means امتحانات میں کسی نشان یا گریڈ تک

Grade means امتحانات میں کسی نشان یا گریڈ تک

Explanation

Essential means ایسی چیز جو بہت اہم ہے یا ضروری ہے

Necessary means ایسی چیز جو بہت اہم ہے یا ضروری ہے

Explanation

The given sentence is in past perfect passive voice: "had been bribed."

Active voice of past perfect: Subject + had + past participle, hence "They had bribed the officer."

Explanation

She told Hyder that she had gone to Islamabad the previous week.

"Said to" changes to "told", and the pronoun "I" changes to "she".

"Went" (past simple) changes to "had gone" (past perfect) in indirect speech.

"Last week" becomes "the previous week."

Explanation

Given the cost price (CP) of the suit is Rs. 182.30 and the selling price (SP) is Rs. 210.60:

Step 1: Calculate the profit.

Profit = SP - CP

= 210.60 - 182.30

= 28.30

Explanation

The poem "Lines from Endymion" is written by John Keats, a famous Romantic poet.

It begins with the well-known line: "A thing of beauty is a joy forever."

Explanation

Cure means علاج

Medical treatment means طبی علاج