a) The motion along the vertical direction and the motion along the horizontal direction.
b) The object remains in the air for a time period of 2usin(θ)/g.
Any object that is thrown in the air when gravity is acting on it is called a projectile. The motion of this projectile is called projectile motion.
When the projectile is thrown in the air at some angle θ, then there are two independent motions taking place at the same time. First is the component of motion along the vertical direction along which gravity acts. Second is the component of motion along the horizontal direction along which the object moves with a constant velocity. No force acts along the horizontal direction. The horizontal motion does not affect the vertical motion and the converse is also true. So these are independent of each other.
The time of flight is the time during which a projectile remains in the air. This time of flight is calculated using the formula,
T=2usin(θ)/g
where T is the time of flight, u is the initial velocity and g is the acceleration due to gravity.
Hence, the object remains in the air for a time period of 2usin(θ)/g.
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<span>2 'Fe' atoms on both sides </span>
<span>2 'O' atoms on both sides</span>
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False, sharks and remoras have a symbiotic relationship. The remora removes parasites from the sharks scales, and the shark provides protection for the remora
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Adaptive radiation usually refers to the diversification of living species that are evolved from a common ancestor. There occur changes and modifications in the ecological system, due to which the species can adapt to the changing environment with the available resources. It also modifies the ways in which the existing species interacts with the surrounding environment. Here, the species select the ecological niches naturally.
A plant named 'silver sword' that is commonly found in Hawaii, and the appearance and diversification of mammals after the extinction of dinosaurs by the end of Cretaceous, are two examples of adaptive radiation.
