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In an exercise to heat up some cold, hard cash, a coin with a massof 6.25 g that has been kept in the freezer at a temperature of-18.05 deg-C is taken out and placed into a thermos containing 14.3ml of warm water at 35.00 deg-C. The final temperature of the wateris found to be 33.17 deg-C. What is the specific heat of the coin?If the initial diameter of the cold coin at -18.05 deg-C is 24.3422mm and the final diameter of the coin at 33.17 deg-C is 24.3659 what is the coefficient of linear thermal expansion of the coin?
What is the result of mixing 80g of ice at -20 degrees Celsius, into a 200g of water at 20 degrees Celsius? What fraction of the ice cube melts
Initially at rest, a small copper sphere with a mass of 2.10-6kg and a charge of6.10-4C is accelerated through a7700-V potential difference before entering a magnetic field of magnitude 4 T, directed perpendicular to its velocity. What is the radi..
A 171 kg block of ice at 0.0°C is placed in a large lake. The temperature of the lake is just slightly higher than 0.0°C, and the ice melts very slowly, What is the entropy change of the universe
A baseball pitcher throws a fastball at a speed of 35m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 3.7 m. estimate the acceleration, assuming that it is constant ..
Light travels a distance of 0.945m in 4.50ns in a given substance. What is the index of refraction of this substance
consider the function fx cosbsqrt of x where b 6.28 cm-0.5.a argue that this wave has crests at x0.1 cm 4cm 9cm and so
Light passes through a diffraction grating with 3550 lines/cm and forms a first-order maximum at an angle of 12.07°. At what angle will the second maximum appear
A bat emits short pulses of sound at a frequency of 1.60×105 Hz. As the bat swoops toward a flat wall at speed 30.0 m/s, What is the frequency of sound incident on the wall
A long distance power line is to carry 175 megawatts (1.25x10^8W) of alternating current power at distance of 15.0km at a peak voltage of 1.00MV and a frequency of 60Hz.
An earth satellite is observed to have a height of pergee of 210 Kilometers and a height of apogee of 1,200 kilometers. Find the period of the orbit
An RLC circuit has a resistance of 2 komega, a capacitance of 32 uF, and an inductance of 52 H. obtain the phase shift between the current and the voltage
A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. What is the angular displacement of the ball while the ball is in the air
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