Earth satellites such as the International Space Station orbit at altitudes that are mainlyabove Earth’s atmosphere. A simple and accurate way to comprehend the orbit of thesesatellites is to view them asa. balanced between gravitational and centripetal forces.b. beyond the main pull of Earth’s gravity.c. in mechanical equilibrium with a net force of zero.d. having sufficient tangential velocities to fall around rather than into Earth.e. All of the above.

An artificial satellite of Earth nears the end of its life due to air resistance. While still in orbit:Group of answer choicesit moves slower as the orbit lowersit moves faster as the orbit lowersit moves faster in the same orbit but with an increasing periodit moves slower in the same orbit but with a decreasing periodit slowly spirals away from Earth

A geostationary satellite orbits at a fixed position above the surface of the Earth.It is used for communicating signals from one place to another place on the Earth.Question promptWhy does the satellite stay above a fixed position on the surface of the Earth?Question response areaSelect one optionIt moves in the same direction as the rotation of the Earth and completes one orbit of the Earth in 24 hours.It moves in the same direction as the rotation of the Earth and completes one orbit of the Earth in 365 days.It moves in the opposite direction as the rotation of the Earth and completes one orbit of the Earth in 24 hours.It moves in the opposite direction as the rotation of the Earth and completes one orbit of the Earth in 365 days.

Define and differentiate between natural satellites and artificial satellites. Provide examples of each type and explain their significance in solar system exploration.

A satellite is in a circular orbit around the Earth. When it is moved to an orbit that is doser to the Earth's surface, which of the following describes the energy changes that take place? A gravitational potential energy increases, kinetic energy increases B gravitational potential energy increases, kinetic energy decreases C oravitational potential energy decreases, kinetic energy increases. D gravitational potential energy decreases, kinetic energy decreases

Assume that the Moon is at a distance of3,00,000 km from the Earth, and that ittakes 28 days for it to orbit the Earth once.Geostationary satellites are those which areat a rest relative to the Earth. Using thesetwo facts, derive the altitude of thegeostationary satellite from the centre ofthe Earth.