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A 50.0 g silver spoon at 20.0 oC is placed in a cup of coffee at 90.0 oC. The spoon heats while the coffee cools. The final temperature of the spoon and the coffee is 89.2 oC. The coffee cools while the spoon heats. Assuming the specific heat of coffee to be the same as the specific heat of water (4.19 J/g.oC) and knowing the specific heat of silver to be 0.235 J/g.oC, what is the mass of the coffee?
Light-rail passenger trains that provide transportation within and between cities speed up and slow down with a nearly constant (and quite modest) acceleration. What is the final Speed
A mass-spring system oscillates with an amplitude of 5.40 cm. If the spring constant is 239 N/m and the mass is 474 g, Determine the maximum acceleration of the object
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is L = 98.1 m. How tall is the antenna
A specific radioactive isotope has a half-life of 24.2 minutes. How long will it take this isotope to decay to 1/8 of its original amount? The formula of the ionic compound that forms two ions,A^2+ and R^9-, Can be written as AxRy. What is the valu..
Determine the maximum angular velocity of the rod and the corresponding value of θ
The basic function of an automobile's carburetor is to atomize the gasoline and mix it with air to promote rapid combustion
Discuss the bounce-diagram technique of keeping track of the bouncing back and forth of the transient waves on a transmission line for a pulse voltage source.
Explain. Many insulators, however, are not very pure. Why do impurities not affect the resistivity of insulators?
Calculate the rotational inertia of a meter stick, with mass 0.576 kg, about an axis perpendicular to the stick and located at the 29.9 cm mark
particle 1 with mass 6.0 u and charge 4e and particle 2 with mass 8.0 u and charge 6e have the same kinetic energy and
A long cylindrical conductor of radius a = 9.00cm and length L = 8.00 m carries a current I = 9.00 A uniformly over its cross-sectional area. The conductor is made of a material with resistivity 50.0 nano-Ohm-m. What is the magnitude of the Poynting ..
A 0.27-m-thick sheet of ice covers a lake. The air temperature at the ice surface is -10°C. In five minutes, the ice thickens by a small amount. Find the number of millimeters by which the ice thickens
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