Answer Posted / gaurav saxena
Weightlessness:-When a body or a spacecraft is moving in an orbit around the earth, the centrifugal force on it acts in the direction opposite to that of its weight with, which it attracted towards the earth. For a particular orbital speed (at a given height) the weight of the body is neutralized by the centrifugal force acting on it and the body becomes weightless. The absence of any apparent gravitational pull on an object is weightlessness. Absolute weightlessness is obtained, only by an object falling freely in Vacuum, an orbiting satellite is a special case of tree fall. The state of weightlessness is also induced when a body moves at a speed sufficient to counteract gravitational pull of any other object upon it
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
In what ways are trees helpful to humans?
Explain bulbs ?
Which tree is more advanced: deciduous or coniferous?
what is the importance of Phytochrome pigment?
what is the importance of the medicinal plant morinda elliptica?
chlorophyll is soluble in?
Differentiate between c3 and c4 plants.
What is pollination?
what is applied botany?
What is the structure of chlorophyll and the energy transfer mechanism?
what are the uses of economically important plants?
what are the adaptations of desert plants like cactus?
In cleared and stained root material you have seen structures that appear to be empty sacs in the epidermal cells with ostioles that exit to the soil. Which division are these fungi likely to be from?
what are aromatic plants?
Fungi lack chlorophyll,than why they considered evolutionary more advance than algae?
