Explanation

Explanation

Feisty means جوش ميں آيا ہُوا

Spiritless means بے روح

Explanation

Reformation means تجدید

Renewal means تجدید

Explanation

Explanation

Since the two boxes are identical, the weight of the second box is equal to the weight of the first box. 

The normal force from the table will increase to support the combined weight of both boxes, which is 150 N (2 x 75 N).

Explanation

To find the divergence, calculate:

div(f) = ∂/∂x (3x^2) + ∂/∂y (5xy) + ∂/∂z (xyz^3)

= 6x + 5x + 3xyz^2

At (1, 2, 3):

div(f) = 6(1) + 5(1) + 3(1)(2)(3)^2

= 6 + 5 + 54

= 65

Explanation

Explanation

Energy of one photon (E) = hc / λ

h = 6.626 × 10^-34 Js

c = 3 × 10^8 m/s

λ = 4961 Å = 4961 × 10^-10 m

E = (6.626 × 10^-34 Js × 3 × 10^8 m/s) / (4961 × 10^-10 m)

= 4.007 × 10^-19 J

Number of photons required to do 1 J of work:

n = 1 J / (4.007 × 10^-19 J)

= 2.4961 × 10^18

Explanation

The variation of Electric field (E) with distance (r) is observed as 1/r² for a spherical shell.

This is consistent with Gauss's Law for a spherical shell.

Explanation

The phrase "held up his first" indicates a physical action.

The word "defiant" suggests a bold or challenging attitude.