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Piles of snow on slippery roofs can become dangerous projectiles as they melt. Consider a chunk of snow at the ridge of a roof with a pitch of 27. As the snow begins to melt, the c
Archimedes' principle A body which is submerged into a fluid is buoyed up through a force equal in magnitude to the weight of the fluid which is displaced, and directed upward
What is the Law of Machines? Machines which are used to lift a heavy load are governed by the "Law of machines", which says that the effort to be applied on the machine (p) is
Heater Another form of heater can be made from an old oil tin. Iron wire is wrapped round a test tube and twisted to form a handle.
Centrifugal force with a ring Secure an iron ring about 6 cm in diameter and Join it to the cord on the drill. Observe the effects.
Gravitational field can also be shown by lines of force. This is same in several ways as that of electric lines of forces. With one dissimilarity, electric charges are negative and
Q. How does the height and air pressure affect the boiling point of water? Answer:- The only factor that finding the boiling point of water at any altitude is the barometr
What is the type of bonding in silicon? (A) Ionic. (B) Covalent. (C) Metallic. (D) Ionic + Metallic Ans: Bonding in silicon is covalent type.
what is an atom
Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon ascends from the launch site at a constant vertical speed of 2.70 m/s. At a height of 202 m, the balloonist main
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