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A bottle containing 3.4 kg (mass) of water at a temperature of 23.4 oC is placed in a refrigerator where the temperature is kept at 3.2 oC. How much heat is transferred from the water to cool it to the lower temperature?
Using a diesel fired boiler with an efficiency of 80%.How many liters of diesel is required to create 1000kg of steam at 120degrees Celsius from make up water at 20 degrees Celsius.given that enthalpy of steam at 120 degrees Celsius is 2706.3kJ/kg..
The rocket moves for 3.00 s along its initial line of motion with an acceleration of 31.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. Find out the maximum altitude reached by the rocket.
A 18.60 kg piece of zinc at 75 degrees Celsius is placed in a container of water. The water has a mass of 20 kg and has a temperature of 10.10 degrees Celsius before the zinc is added. What is the final temperature of water and zinc.
A gas expands from I to F. The energy added to the gas by heat is 423 J when the gas goes from I to F along the diagonal path.
Find the velocity of each object after the collision.he encountered cold weather conditions on the way to Payson, Utah when the temperature was 23 kelvin lower than in Las Vegas, where he delivered his entire load. how much liters did he deliver.
The electric motor of a model train accelerates the train from rest to 0.580 m/s in 33.0 ms. the total mass of the train is 563 g. Find out the average power delivered to the train during its acceleration. The units need to W for the final answer.
A speedboat moving at 33.0 m/s approaches a no-wake buoy marker 100 m ahead. How long does it take the boat to reach the buoy
A convex spherical mirror with a radius of curvature of 11.0 cm produces a virtual image one third the size of the real object. Where is the object
If it takes you about 2 minutes to fill your 12 gal (or 0.48 m3) gas tank. Estimate the velocity of the gas as it leaves the nozzle
A uniform steel beam has a mass of 2070 kg. On it is resting half of an identical beam, What are the vertical support forces
An electron remains in an excited state of an atom for typically 10-8 s. What is the minimum uncertainty in the energy of the state
A 50 kg sled is subject to a net force of 20 N pushing in the direction of the sled motion as it is moving over a horizontal surface for a distance of 11 m after having started from rest. find the work done by friction while the sled is on the incl..
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