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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?
The average distance of an electron in an atom from its nucleus is of the order of: (1) 10 6 m (2) 10 -6 m (3) 10 -10 m (4)10 -15 m Ans: (3) 10 -10 m
At what velocity a clock should move so that it seems slow by one minute in a day.
As defined in physics, work is: a) A scalar quantity b) Always a positive quantity c) A vector quantity d) Always zero Ans: As defined in physics, work
summary requirement of cooling of transformers
Is the sheath color important? This is a mainly slippery subject and the cause of heated debate. Several scientists affirm that an opaque light or white colored cladding, parti
Hi Do you have expert can help me to solve coupl problems from classical electrodynamics Jackson ch11 and ch12
composition of simple harmonic motion
Define the characteristics of Heterojunction laser. Heterojunction laser: The threshold current density for homojunction lasers is extremely large because of poor optical an
Theory of Light: Newton proposed 'Corpuscular Theory of Light'. 2. According to corpuscular theory, light consists of a stream of tiny, light and perfectly elastic particle
An electron, an alpha-particle and a proton have the similar kinetic energy. Which one of these particles has the main de-Broglie wavelength?
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