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90 grams of water at 80°C are mixed with an equal amount of water at 20°C in a completely insulated container. The final temperature of the water is 50°C.
How much heat is lost by the hot water?
cal (magnitude only)=
How much heat is gained by the cold water?
Find out the minimum values of m1 and m2 such that the overlapping of the bright fringes will occur and find position of the overlap on screen.
The mass of a roller-coaster car, including its passengers, is 495kg. Its speed at the bottom of the track in the figure below is 17.00 m/s. The radius of this section of track is r1 = 26 m. Find the force that a seat in the roller-coaster car exerts..
A bicycle rim has a diameter of 0.65 m and a moment of inertia, What is the mass of the rim
A plane flies from base camp to Lake A, 340 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 240 km at 30.0° west of north from Lake A. Graphically find the distance and direction from Lake B to..
About the axis of the rod.ωA ball of mass m is attached by two strings to a vertical rod. The entire system rotates at constant angular velocity.
A weather balloon rises by the atmosphere, its volume expanding from 4.4m^3 to 10m^3 as temperature drops from 17 Degrees C to -13Degrees C.
A fictional spaceship accelerates at a constant rate of 0.104 m/s2. How long would it take to reach the moon, 4.08 108 m away
In a Compton scattering experiment, the scattered electron is observed to move in the same direction, what is the scattering angle of the photon
Three resistors, 21, 39, and 73 , are connected in series, determine the potential difference across the three resistors
A portable electric heater uses 14 Amp of current. What is the smallest radius of copper wire that can be used in the extension cord
A string with a mass of 31 g and a length of 2 m is stretched under a tension of 67 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 51 Hz and an amplitude of 4 cm?
The electron's magnetic moment is known as the "Bohr Magnetron" and has a theoretical value of ?B?eh4?m, where "h" is Planck's constant (h=6.63×10?34 J?s), Calculate the magnetic moment value of the Bohr Magnetron
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