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In a container of negligible mass, 0.190 kg of ice at an initial temperature of -29.0C is mixed with a mass m of water that has an initial temperature of 80.0C. No heat is lost to the surroundings.
If the final temperature of the system is 29.0C, what is the mass m of the water that was initially at 80.0C?
A beam of proton with velocity= 4* 10 ^6 m.s enter uniform M.F. of 0.3 T. the velocity makes angle 60 degree with M.F find radius of HELICAL path takenby beam and pitch of the helix
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.66 m, How much energy does our body lose in one second
What do you mean by the concept of energy in physics? Is the energy has any physical significance in the daily life of a common man? Please explain this concept in easy points
A 16.0-? resistor, a 12.0-µF capacitor, and a 17.0-mH inductor are connected in series with a 170-V generator. What is the maximum value of the rms current?
If a student measures that the block begins to move at an angle of θ = 31o, what is the numerical value of the coefficient of static friction, μs?
An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 800 m, horizontal distance 19.4 km, and 22.5° south of west. What is the distance between the two aircraft
Balmer discovered the famous formula that bears his name by inspection and trial and error. See if you can discover the formula for each of the following series of wavelengths. Each formula involved an integer n, but, as in the Balmer formula, n m..
Two small stereo speakers are 2.8 m apart and act as a double-slit interference experiment by sound waves. If the opposite wall of the room is 7.5 m away and the sound frequency is 1.4 kHz, what is the distance among the two interference maxima neare..
a bullet is fired horizontally at a block of wood that is suspended by a string. the bullet strikes the block and is
The length of the B string on a certain guitar is 62.0 cm. It vibrates at a fundamental frequency of 246.0 Hz. what should the tension be when the string is in tune
A resistor operates at 110V in 10 mins. How many electrons pass through the resistor during this time interval, if heat rate is 300W
An empty rubber balloon has a mass of 0.0105 kg. The balloon is filled with helium at adensity of 0.181 kg/m3. what is the tension in the line
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