Explanation

Decaying involves the breakdown of organic matter into simpler substances through chemical reactions.

It alters the original composition of the material, which is a hallmark of a chemical change.

Explanation

Work done = F × d × cos(θ); when angle θ = 180°, cos(180°) = -1.

So, if force and displacement are antiparallel (opposite), the work is negative.

Explanation

She told the doctor that she would be going to Murree the next day.

"Said to" changes to "told" and "will" changes to "would" in indirect speech.

"Tomorrow" becomes "the next day" as per rules of reported speech.

Explanation

For the X and Y components of a force to be equal:

Fx = Fy

Given F = Fx i + Fy j = F cos(θ) i + F sin(θ) j

Fx = F cos(θ)

Fy = F sin(θ)

For Fx = Fy:

F cos(θ) = F sin(θ)

cos(θ) = sin(θ)

tan(θ) = 1

θ = 45°

Explanation

Kinetic energy (K) is related to momentum (p) by K = p² / 2m. If momentum increases by 20%, the new momentum p' = 1.2p.

The new kinetic energy K' = (p')² / 2m = (1.2p)² / 2m = 1.44p² / 2m = 1.44K.

The percentage increase in K.E is ((K' - K) / K) × 100 = ((1.44K - K) / K) × 100 = 44%.

Explanation

A D.C. generator uses split rings (commutator) to reverse the current direction in the coil every half rotation.

This ensures that the output current flows in one direction (direct current).

Explanation

Java applets are small programs written in Java that run inside a web browser.

They are used for interactive features in web applications (though now largely outdated).

Explanation

The C programming language was developed in 1972 by Dennis Ritchie

in the Bell Laboratories of the AT & T (American Telephone & Telegraph),located in U.S.A.

Dennis Ritchie is known as the founder of c language.

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Co developer of Unix

C is a general-purpose computer programming language.

It was created in the 1970s.

By design, C's features cleanly reflect the capabilities of the targeted CPUs. 

Designed by: Dennis Ritchie

First appeared: 1972

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Explanation

The Air Brush tool simulates spray painting, creating a spray pattern.

It’s commonly used in digital painting for soft and gradual coloring effects.

Explanation

In computing, jobs in the buffer are typically managed in a queue, where they wait their turn for processing.

A queue follows the First-In-First-Out (FIFO) method, ensuring orderly job execution.