Bernoulli’s theorem is based on energy conservation. It states that in a flowing fluid, an increase in the fluid’s speed occurs simultaneously with a decrease in pressure or potential energy. This principle is fundamental in fluid dynamics and is used ...
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An iron needle floats on the surface of water due to surface tension. Surface tension is the cohesive force between water molecules at the surface, which creates an upward force capable of supporting lightweight objects like the needle.
Absorption of ink by blotting paper involves capillary reaction phenomenon. Capillary action occurs due to the adhesive and cohesive forces between the liquid molecules and the fibers of the paper, causing the ink to be drawn upward. This phenomenon is ...
Action and reaction have the same magnitude and opposite directions. According to Newton’s third law of motion, for every action, there is an equal and opposite reaction. This principle applies to interactions between two objects, where the forces exerted on ...
The ball should be thrown at a 45° angle from the horizontal to cover the maximum horizontal distance. At this angle, the horizontal and vertical components of the initial velocity are equal, maximizing the projectile’s range.