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An ice chest at a beach party contains 12 cans of soda at 2.41°C. Each can of soda has a mass of 0.35 kg and a specific heat capacity of 3800 J/(kg C°). Someone adds a 9.97-kg watermelon at 23.5 °C to the chest. The specific heat capacity of watermelon is nearly the same as that of water. Ignore the specific heat capacity of the chest and decide the final temperature T of the soda and watermelon in degrees Celsius.
When a mass of 7.15 kg is attached to the spring, the spring stretches by 0.0105 m. Calculate the kinetic energy the mass possesses
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the orbital period of the faster planet, in years
The horizontal velocity of a projectile
A spool of wire of mass 4.1 kg and radius 0.35 m is unwound under a constant wire tension 4.4 N. Find the friction force on the bottom of the spool
one mole of an ideal diatomic gas is heated from a temperature of 19 degrees c to a temperature of 149 degrees c. how
Calculate the change in potential energy of a 86.4 kg man when he takes an elevator from the first floor to 35th floor, if the distance between floors is 4.11 m
The density of water is 1000 kg/m3. A block of wood ofuniform density floats so that exactly 3/4 of its volume isunderwater. What is the density of the block
you suspect that an unknown is acetanilide mp 113.5-114oc. give a qualitative estimation of the melting point when the
Light travles between a medium of index n=1.52 and a medium of index n1=1.38. What is the critical angle for this combination, What is the speed of light in the low index medium
An engine is used to lift a 2700 kg truck to a height of 3.0 mat constant speed. What is the efficiency of the engine
A bullet of mass 7.00g is fired horizontally into a wooden block of mass 1.29kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.250. The bullet remains embedded in the block, which is observed to..
two forces f1 and f2 are acting on a mass m6.0 kg. the force f1 5.0i 7.0j 2.0k in n. the acceleration of the mass is
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