Orbital velocity is the speed required to place a satellite in a stable orbit around the Earth. When a satellite orbits the Earth, the gravitational force acting on it provides the necessary centripetal force to maintain its circular path. The gravitational force depends on the mass of the Earth, thRead more
Orbital velocity is the speed required to place a satellite in a stable orbit around the Earth.
When a satellite orbits the Earth, the gravitational force acting on it provides the necessary centripetal force to maintain its circular path. The gravitational force depends on the mass of the Earth, the mass of the satellite, and the distance between the Earth’s center and the satellite, which is the sum of the Earth’s radius and the satellite’s height above the surface.
At equilibrium, the gravitational pull balances the centripetal force required for the satellite’s circular motion. From this balance, we determine the orbital velocity of the satellite. For satellites orbiting close to the Earth’s surface, the orbital velocity is approximately 7.92 km/s, assuming Earth’s acceleration due to gravity is 9.8 m/s² and the Earth’s radius is about 6.4 × 10⁶ m.
(i) Primary Activities vs. Tertiary Activities: - Primary Activities: Involve extracting or harvesting natural resources directly from nature. Examples include agriculture, fishing, mining, and forestry. - Tertiary Activities: Refer to services involving the distribution, exchange, and consumption oRead more
(i) Primary Activities vs. Tertiary Activities:
– Primary Activities: Involve extracting or harvesting natural resources directly from nature. Examples include agriculture, fishing, mining, and forestry.
– Tertiary Activities: Refer to services involving the distribution, exchange, and consumption of goods. Examples encompass trade, transport, banking, education, healthcare, and tourism.
(ii) Subsistence Farming vs. Intensive Farming:
– Subsistence Farming: Primarily for self-consumption, it involves cultivating small areas with limited resources and traditional techniques to fulfill family needs.
– Intensive Farming: Aims for maximum yield on a limited area using high inputs like fertilizers, machinery, and technology, ensuring higher productivity for commercial purposes.
Resource conservation entails responsibly managing and preserving natural resources for future generations. It involves sustainable usage, waste reduction, and preventing depletion or degradation. The objective is to balance present needs with future requirements, ensuring resources remain availableRead more
Resource conservation entails responsibly managing and preserving natural resources for future generations. It involves sustainable usage, waste reduction, and preventing depletion or degradation. The objective is to balance present needs with future requirements, ensuring resources remain available and viable over time without compromising their availability for future use.
Human resources are essential for economic, social, and technological advancement. Skilled individuals drive productivity, innovation, and economic growth. A motivated workforce enhances organizational efficiency and competitiveness in the global market. Investing in education and skill developmentRead more
Human resources are essential for economic, social, and technological advancement. Skilled individuals drive productivity, innovation, and economic growth. A motivated workforce enhances organizational efficiency and competitiveness in the global market. Investing in education and skill development creates valuable human capital, crucial for societal progress and long-term sustainable development.
What is satellite?
A satellite is a body that continuously revolves around a much larger body in a stable orbit.
A satellite is a body that continuously revolves around a much larger body in a stable orbit.
See lessDefine orbital velocity of a satellite. Derive expressions for the orbital velocity of a body from the earth’s surface is root2 times its velocity in a circular orbit just above the earth’s surface.
Orbital velocity is the speed required to place a satellite in a stable orbit around the Earth. When a satellite orbits the Earth, the gravitational force acting on it provides the necessary centripetal force to maintain its circular path. The gravitational force depends on the mass of the Earth, thRead more
Orbital velocity is the speed required to place a satellite in a stable orbit around the Earth.
When a satellite orbits the Earth, the gravitational force acting on it provides the necessary centripetal force to maintain its circular path. The gravitational force depends on the mass of the Earth, the mass of the satellite, and the distance between the Earth’s center and the satellite, which is the sum of the Earth’s radius and the satellite’s height above the surface.
At equilibrium, the gravitational pull balances the centripetal force required for the satellite’s circular motion. From this balance, we determine the orbital velocity of the satellite. For satellites orbiting close to the Earth’s surface, the orbital velocity is approximately 7.92 km/s, assuming Earth’s acceleration due to gravity is 9.8 m/s² and the Earth’s radius is about 6.4 × 10⁶ m.
See lessDistinguish between the followings. (i) Primary activites and tertiary activities (ii) Subsistence farming and intenstive farming.
(i) Primary Activities vs. Tertiary Activities: - Primary Activities: Involve extracting or harvesting natural resources directly from nature. Examples include agriculture, fishing, mining, and forestry. - Tertiary Activities: Refer to services involving the distribution, exchange, and consumption oRead more
(i) Primary Activities vs. Tertiary Activities:
– Primary Activities: Involve extracting or harvesting natural resources directly from nature. Examples include agriculture, fishing, mining, and forestry.
– Tertiary Activities: Refer to services involving the distribution, exchange, and consumption of goods. Examples encompass trade, transport, banking, education, healthcare, and tourism.
(ii) Subsistence Farming vs. Intensive Farming:
See less– Subsistence Farming: Primarily for self-consumption, it involves cultivating small areas with limited resources and traditional techniques to fulfill family needs.
– Intensive Farming: Aims for maximum yield on a limited area using high inputs like fertilizers, machinery, and technology, ensuring higher productivity for commercial purposes.
What is resource conservation?
Resource conservation entails responsibly managing and preserving natural resources for future generations. It involves sustainable usage, waste reduction, and preventing depletion or degradation. The objective is to balance present needs with future requirements, ensuring resources remain availableRead more
Resource conservation entails responsibly managing and preserving natural resources for future generations. It involves sustainable usage, waste reduction, and preventing depletion or degradation. The objective is to balance present needs with future requirements, ensuring resources remain available and viable over time without compromising their availability for future use.
See lessWhy are human resources important?
Human resources are essential for economic, social, and technological advancement. Skilled individuals drive productivity, innovation, and economic growth. A motivated workforce enhances organizational efficiency and competitiveness in the global market. Investing in education and skill developmentRead more
Human resources are essential for economic, social, and technological advancement. Skilled individuals drive productivity, innovation, and economic growth. A motivated workforce enhances organizational efficiency and competitiveness in the global market. Investing in education and skill development creates valuable human capital, crucial for societal progress and long-term sustainable development.
See less