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In a physics lab experiment, a student immersed 205 one-cent coins (each having a mass of 3.00g ) in boiling water. After they reached thermal equilibrium, she quickly fished them out and dropped them into 0.236kg of water at 20.0 C in an insulated container of negligible mass.......... What was the final temperature of the coins? [One-cent coins are made of a metal alloy - mostly zinc - with a specific heat capacity of 390 J / (kg * K)
if a 50 ohm toaster is connected in parallel to two 120 W bulbs and 120 V is applied across the light bulbs/toaster combination what is the current flowing through the toaster
question1consider a cylindrical segment of a blood vessel 1.7 cm long and 2.4 mm in diameter. what extra outward force
An electron is orbiting a proton under the Coulomb force in a hydrogen atom at a radius of 0.52 × 10-10 m
The vibrational frequency of CO molecule is 6.42 x 1013 Hz. Estimate the amplitude of molecular vibrations.
An electron confined in a one-dimensional box is observed, at different times, to have energies of 32.5 eV, 57.8 eV, What is the length of the box
A thin spherical shell has a radius of 2.8 m and a mass of 270 kg, and its center is located at the origin of a coordinate system. Another spherical shell with a radius of 1 m and mass 100 kg is inside the larger shell with its center at 0.6 m on the..
Six mass pieces of 100g each are placed on a mass holder of 140g which is hung from a string. Analyse the tension in the string.
A metal bar is in the xy-plane with one end of the bar at the origin. What are the magnitude of the torque with respect to the origin produced by F
A fluid has a density of 1040kg/m^3. If it rises to a height of 1.8cm in a 1.0mm diameter capillary tube, what is the surface tension of the liquid
A 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 N. What is the radius of the circle of motion
In a mass spectrometer, a singly charged ion having a particular velocity is selected by using a magnetic field of 0.10 T , What is the mass of the ion
A particle travels 18 times around a 11-cm radius circle in 45 seconds. What is the average speed (in m/s) of the particle
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