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When 3.78 g of nonvolatile solute is dissolved in 300.0 g ofwater, the freezing point depression is 0.646 o C. Calculate the molar mass of the solute. The cryoscopicconstant of water is 1.86 K kg mol -1.
A light bulb has a resistance of 230 ?. It is connected to a standard wall socket (120 V rms, 60.0 Hz). Determine the current in the bulb
Suppose you have a tube 1.20 m long, open on both ends. Determine the frequency of the 2nd overtone, assuming the speed of sound to be 343 m/s. Repeat for the same length tube but with a closed end.
For a particular scientific experiment, it is important to be completely isolated from any magnetic field, What is the current in the current loop
A probe from earth, with a mass of 10^6 kg, is in orbit aroun planet Pud in another solar system. find the acceleration due to gravity on the surface of the planet Pud
The wavelength of a spectral line measured to he lambda on I Earth is found to increase by 50% on a far distant galaxy. What is the speed of the galaxy relative to earth?
A wave of amplitude 0.30 m interferes with a second wave of amplitude 0.20 m. What are the (a) largest and (b) smallest absolute values of the resultant displacement that can occur, and under what conditions will these maxima and minima occur?
A star is moving away from Earth at a speed of 2.3x10^8 m/s. find the wavelength as measured by an Earth observer
A certain lightbulb has a tungsten filament with a resistance of 18.0 when cold and 138 when hot. Find the temperature of the hot filament
A 3.9kg ball with a velocity of 3.2m/s in the +x-direction collides head-on elastically with a stationary 1.5kg ball. What is the speed of the first ball after the collision
Now, as both pipes vibrate at their fundamental frequencies, the beat frequency of 17 Hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 333 m/s.
A 21 g bullet travelling at 255 m/s is fired into a 0.452 kg wooden block anchored to a 100 N/m spring. How far is spring compressed to the nearest thousandth of a meter.
A concave makeup mirror is designed so the virtual image it produces is three times the size of the object, What is the radius of curvature of the mirror
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