Explanation

The value of eccentricity of a circle is 0.

This is because a circle is a special case of an ellipse where the two foci coincide at the single center point, resulting in a zero distance between the foci

As a measure of how much a shape deviates from a perfect circle, a circle, by its very nature, deviates from a circle by zero amount.

Explanation

Explanation

- Savage = وحشی  

- Wild = جنگلی  

Explanation

Gravitational acceleration at a height h above Earth's surface is less than at the surface.

- Formula: gₕ = g × (R / (R + h))²  

- As h increases, gₕ decreases.  

- This is due to the inverse square law of gravity: force (and thus acceleration) weakens with the square of the distance from the center of the Earth.  

- At very high altitudes (like satellites), gravity is still present but weaker.

Explanation

Torque (τ) measures the rotational effect of a force.  

It is calculated as:  

τ = Force × Perpendicular distance (lever arm)  

Unit: Newton-meter (N·m)

It determines how effectively a force can rotate an object about an axis.

Explanation

Tense: Present simple  

- Active: Subject + verb + object → The teacher teaches English  

- Passive: Object + is/are + past participle + by + subject  

- English is taught by the teacher.

Explanation

This is the standard slope-intercept form of a straight line:

y = mx + c, where  

- m is the slope  

- c is the y-intercept

Explanation

To find the range (R) of a projectile, use the formula:

R = (u² * sin(2θ)) / g

Where:  

- u = initial velocity = 30 m/s  

- θ = angle of projection = 45°  

- g = acceleration due to gravity = 9.8 m/s²

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Step-by-step:

- sin(2θ) = sin(2 × 45°) = sin(90°) = 1  

- R = (30² × 1) / 9.8  

- R = 900 / 9.8 ≈ 91.84 meters

91.84 to the nearest whole number gives: 92 meters

Explanation

Direction: West to east, matching the Earth's rotation.

Altitude: About 22,300 miles (35,800 km) above the equator.

Orbital Period: 24 hours, the same as Earth's rotational period.

Location: Directly above the Earth's equator.

Explanation

The dual nature of light is demonstrated by experiments such as the Double-Slit Experiment,

This shows light's wave properties through diffraction and interference patterns, and the Photoelectric Effect.

This reveals its particle (photon) nature by showing that light energy is quantized.

The Compton Effect further supports the particle nature by showing that photons collide with electrons as particles