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(a) Two 40 g ice cubes are dropped into 220 g of water in a thermally insulated container. If the water was initially at25°C, and the ice came directly from a freezer at -15°C,what will be the temperature of the drink when the ice and water reach the same temperature? (Neglect the heat capacity of the glass.) (b) Suppose that only one ice cube had been used in (a); what would-be the final temperature of the drink?
Determine the enthalpy of vaporizaton of species: You wish to determine the enthalpy of vaporizaton of species A. You are able to find the following data: Species A has a norm
EXAMPLES: (i) When the book is lying on a table, it exerts a downward force on the table (because of its weight). This force is known as action. The table exerts an upward forc
Changes Of resistance with temparature: The resistance of all materials changes with changes in temperature. The resistance of all pure metal increases with temperature. The
why dark spot appears on newton''s ring?
explain the negative result of speciale theory of relativity
Huygen's principl e : Huygen's principle states that every point of a wave front behaves as the source of small secondary wavelets which spread out in all directions with a velocit
Pauli exclusion principle (W. Pauli; 1925) No two similar fermions in a system, like electrons in an atom, can have an equal set of quantum numbers.
why are vector and scalar necessary in our everyday activities?
Uniformity principle (E.P. Hubble): The principle that the laws of physics here & now are not distinct, at least qualitatively, from the laws of physics in previous or future
A lead bullet moves horizontally with a velocity of 130 ms-1 and embedded into a cement wall after collision. If the specific heat capacity of lead = 130 JKg-1°C-1 and all heat pro
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