Explanation

Explanation

Explanation

u . n = 0, where n is the unit normal to the boundary

This is the impermeability condition, which states that the fluid cannot flow through the fixed boundary.

Explanation

Explanation

To evaluate the limit:

lim (x→0) (√(x^2+100) - 10)/x^2

Rationalize the numerator:

= lim (x→0) ((x^2+100) - 100) / (x^2(√(x^2+100) + 10))

= lim (x→0) x^2 / (x^2(√(x^2+100) + 10))

Cancel x^2:

= lim (x→0) 1 / (√(x^2+100) + 10)

As x→0, √(x^2+100) → √100 = 10:

= 1 / (10 + 10)

= 1 / 20

Explanation

Explanation

To find the principal (P), use the formula:

Simple Interest (SI) = (P × Rate × Time) / 100

Rearrange the formula to solve for P:

P = (SI × 100) / (Rate × Time)

P = (84 × 100) / (4 × 2)

P = 1050

Explanation

Explanation

Malaria was caused by breathing impure air was once a common belief.

ملیریا سانس لینے کی ناپاک ہوا کی وجہ سے ہوا تھا جب ایک بار ایک عام عقیدہ تھا۔

Malaria directly refers to the subject of the belief in the sentence.

Explanation

Exonerated means cleared from blame or charges.

Sentence: "He was exonerated from all charges leveled against him." is grammatically and contextually correct.