Explanation

Step 1: Recall the formula for torque

Torque (τ) is related to the change in angular momentum (L) over time (t) by the formula: τ = ΔL / Δt

Step 2: Calculate the change in angular momentum

ΔL = 5L - 2L = 3L

Step 3: Calculate the torque

τ = ΔL / Δt = 3L / 3 = L

Explanation

Classroom management involves strategies and practices teachers use to maintain an organized, focused, and respectful learning environment.

It includes handling disruptions, organizing activities, and maintaining student engagement.

Explanation

Encounter means کسی چیز کا سامنا کرنا

Experience means کسی واقعہ یا صورتحال سے گزرنا یا اس کا سامنا کرنا

Explanation

In the quadratic equation ax² + bx + c = 0, a cannot be zero.

If a = 0, the equation becomes linear (bx + c = 0), and it's no longer a quadratic equation.

Explanation

"Do" works as a main verb (e.g., "I do my work") and also as a helping verb (e.g., "Do you understand?").

Its function changes based on how it is used in the sentence.

Explanation

Time = Energy / Power

Given Energy = 1.4 × 10⁶ J and Power = 2 kW = 2000 W:

Time = (1.4 × 10⁶ J) / (2000 W)

Time = 1.4 × 10⁶ / 2000

= 700 s

Explanation

In Simple Harmonic Motion (SHM), instantaneous velocity is maximum when displacement is zero.

This occurs when the phase angle is 90° with respect to displacement (since velocity leads displacement by 90° in SHM).

Explanation

Explanation

Given the equation x^2 + y^2 = 1, the range of y values is [-1, 1] since y ranges from -1 to 1 as x varies.

Explanation

Using the identify 2 sin A cos A = sin 2A, so 2 sin 45° cos 45° = sin 90°.

Since sin 90° = 1, the expression equals 1.