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A mass M of a liquid at a temperature T1 is mixed with an equal mass of the same liquid at a temperature of T2. The system is thermally insulated. If C is themperature-independent specific heat of that liquid, find the total entropy change.
A loudspeaker of mass 25.0 is suspended the distance of = 2.40 below ceiling by two cables that make equal angles with the ceiling. Each cable has a length of = 2.50. What is the tension in each of cables.
Cyclotrons are sometimes used for carbon-dating by accelerating singly ionized C14 and C12 ions from a sample of material. find the difference in cyclotron frequencies for the two ions
A decade before Einstein published his theory of relativity, J.J. Thomson proposed that the electron might consist of small parts, Find the total electric potential energy of this arrangement
A simple harmonic oscillator consists of a block of mass 1.70 kg attached to a spring of spring constant 144 N/m. What is the amplitude of the oscillations
Which kind of research is Professor Carter employing.
A bike wheel (I=m*(r^2)) is spinning at 20 rad/s, at which point a 100 g rat jumps onto the wheel, what is the mass of the bike wheel
The first person is initially moving forward with a speed of 2.5m/s and second person is initially at rest. What are the velocities of the two people after the snowball is swapped? Disregard friction between the skate and the ice.
A person sees clearly wearing eyeglasses that have a power of -5.00 diopters, If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed
A 542 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 1.9 meters. What is the speed of sound in the substance
A truck covers 40.01 m in 7.615 s while smoothly slowing down to final speed 1.40 m/s. What is the original speed and what is the acceleration.
A block of ice slides 500 m down along a frictionless slope (slopes 20 degrees below horizontal). what is blocks speed at end of slop
A long solenoid with 10.0 turns/cm and a radius of 7.00 cm carries a current of 20.0 mA. What is the magnitude of the magnetic field there
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