Explanation

The area of a parallelogram is given by the formula: Area = base × altitude.

Substituting the given values: 36 = base × 4, hence base = 36 / 4 = 9 meters.

Explanation

The correct choice is "is watching" because it follows the present continuous tense, which is used to describe actions happening right now.

"She is watching the TV" indicates that the action is currently ongoing.

Explanation

The product RC (Resistance × Capacitance) gives the time constant in an RC circuit.

Its unit is Ohm × Farad = seconds (s), which is the unit of time.

Explanation

According to Valence Shell Electron Pair Repulsion (VSEPR) theory, XeF₄ (xenon tetrafluoride) has a square planar geometry.

Xenon in XeF₄ has six electron pairs around it: four bonding pairs and two lone pairs.

Explanation

• The shielding effect decreases across a period.
• This is because the increasing nuclear charge is not fully counterbalanced by the same number of inner electrons, resulting in a weaker shielding effect.

Explanation

The energy stored in a capacitor is given by U = (1/2)CV². If the potential difference (V) is doubled:

U ∝ V²

U' ∝ (2V)² = 4V²

So, the energy stored will increase by a factor of 4.

Explanation

Bragged means شیخی مار

Boasted means گھمنڈ

Explanation

The capacity of an object to do work is called energy.

Energy can take many forms and is defined as the capacity a system or object has to perform work.

Explanation

Given the formula and calculation:

F = qE

= (1.6 × 10⁻¹⁹ C) × (1.8 × 10⁻⁸ N/C)

= 2.88 × 10⁻¹¹ N

Explanation

He goes to college daily in time.

The subject "He" is third person singular, so in the present simple tense, we add -s to the verb. 

The sentence describes a habitual action, so the present simple tense is appropriate.