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A hot copper pot of mass of 2kg including the lid is at a temperature of 150 degrees celcius. You pour 14g of cool water at 25 degrees celcius in to the pot and quickly close the lid so no steam can escape. Find the final temperature of the pot and contents, and determine the phase of the water. Assume no heat is lost to the surroundings.
a 2 kg ball moving at 3 m/s hits a wall and bounces off. immediately after the collision it moves at 3 m/s in the opposite direction. what is the magnitude of the change in the objects momentum
a 1000-hz tone from a loudspeaker has an intensity level of 101db at a distance of 2.5 mif the speaker is assumed to be
A hunter aims directly at the target (on the same level) 115 m away. If the bullet leaves the gun at a speed of 205 m/s, by how much will it miss target.
To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest as in the figure below. The belt is a 160-turn coil. find the magnitude of the average induced emf in the coil during that time
a singly charged 7li ion has a mass of 1.16 10-26 kg. it is accelerated through a potential difference of 504 v and
A 0.900 kg block is attached to a spring with spring constant 18 N/m. What is the amplitude of the subsequent oscillations
A particular radioactive source produces 150 m rads of 2.5 MeV gamma rays per hour at a distance of 1 m. How long could a person stand at this distance before accumulating an intolerable dose of 1 rem
Light of wavelength 600 nm illuminates a single slit. At what distance y3 from the center of the screen is the location of the third minimum in the diffraction pattern?
The intensity of sunlight at the distance of the Earth's orbit is 1380 W/m2. An Earth-orbiting satellite has a solar panel that measures 1.35 m by 4.86 m, how much electrical energy does the panel produce
Find what the difference between mass and weight as well as the difference between velocity and speed
A 8.0 cm diameter solenoid is wound with 2000 turns/m. What is the maximum strength of the induced electric field inside the solenoid
The distance from the left-hand side of each stick to the attachment point of the sting supporting it are x1 through x4respectively, as shown in the diagram. The tensions in the supporting strings are T1through T4 as shown. You want to design the ..
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