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Two metal rods, one silver and the other gold, are attached to each other. The free end of the silver rod is connected to a steam chamber, with a temperature of 100°C, and the free end of the gold rod to an ice water bath, with a temperature of 0°C. The rods are 5.0 cm long and have a square cross-section, 2.0 cm on a side. How much heat flows through the two rods in 60 s? The thermal conductivity of silver is 417 W/(m·K), and that of gold is 291 W/(m·K). No heat is exchanged between the rods and the surroundings, except at the ends.
Planet Z is 12,000 km in diameter. The acceleration due to gravity on Planet Z is 7.0 m/s2.
What is Johns resultant displacement
question1a weight lifter pulls down on a bar associated to some weights via a pulley system. he rises in the air. a
A singly charged ion (charge q = +1.60e-19 C) completes four revolutions in a uniform magnetic field, Calculate the mass of the ion in kilograms
A rope is attached to a car and pulled with a 75 N force at an angle of 15 degrees NE. What is the net force and what is its direction
q1. two 12-cm-diameter charged rings face each other 17.0 apart. both rings are charged to 40.0. what is the electric
A 2.0-kg object is attached to a spring (k=55.6 N/m) that hangs vertically from the ceiling. obtain the magnitude of the maximum acceleration of the object
A solenoid with a cross-sectional area of 1.70*10^-3 is 0.735m long and has 485 turns per meter. Find the magnitude of induced emf in this solenoid
a wire is carrying a current in the -x direction. What is the direction of the uniform magnetic field such that the magnetic force is maximized
At normal incidence, the intensity of sunlight at the Earth is 1400 W/m2. find the force on the Earth due to radiation pressure from the Sun
A spherical conducting shell has an interior radius of 18 cm and an outer radius of 21cm. The shell carries a net charge of -2.4 micro coulombs. A point charge of charge +6.4 micro coulombs is placed at the center of spherical shell.
A car is driven 125.0 km west and then 65.0 km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
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