The recoil of a gun when a bullet is fired is an example of MCQ with Answer and Explanation

Explanation:
Newton = kg·m/s², derived from base units. Kilogram, second, candela are base units. Derived units expressed in terms of base units. Joule, watt, pascal are also derived.

Explanation:
Geostationary satellites orbit in Earth's equatorial plane with period matching Earth's rotation period (24 hours), so they appear stationary relative to ground. Orbital radius is about 42,000 km from Earth's center. Memory tip: 'Geostationary: T=24 h, equatorial orbit, fixed position; used for communication/weather satellites'. This standard result is frequently tested in competitive exams. Always recall that geostationary is a special case of geosynchronous (same period) with zero inclination; competitive exams often compare low orbit (84 min) vs geostationary (24 h) periods.

Explanation:
The power formula is P = VI, where P is power, V is voltage, and I is current. Rearranging for current gives I = P / V. Given P = 1500 W and V = 220 V, the current I = 1500 / 220 ≈ 6.818 Amperes. Thus, 6.8 A is the closest correct answer.