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The ends of a thin bar are maintained at dissimilar temperatures. The temperature of the cooler end is 13°C, as the temperature at a point0.15 m from the cooler end is 23°C and the temperature of the warmer end is 44°C. Assuming that heat flows only along the length of the bar (the sides are insulated), discover the length of the bar.
The current in a circuit is tripled by connecting a 500-ohm resistor in parallel with the resistance of the circuit. Determine the resistance of the circuit in the absence of the 500-ohm resistor.
An ideal spring is lying horizontally on a frictionless surface, find the oscillation frequency of a 2.5 kg blcok under the same circumstances
An electron in the hydrogen atom makes a drop from n = 3 to m = 2. What wavelength of photon is emitted
two resistors a and b are connected in series to a 9.0 v battery the voltage across resistor a is 6.0 v. when a and b
Two light pulses are emitted simultaneously from a source. Determine the difference in the pulses' times of arrival at the detector
question a 600-ev electron and a 300-ev electron trapped in a uniform magnetic field move in circular paths in a plane
an infinite line charge of uniform linear charge density -1.1 cm lies parallel to the y axis at x -1 m. a point
A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates an unbanked curve in the road. how fast can the truck be moving without the crate sliding
Monochromatic light at 441 nm is normally incident on an opaque film having a single slit of width 0.02 mm. What is the highest order diffraction minimum produced
an atom with mass m emits a photon of wavelength a.a what is the recoil speed of the atom?b what is the kinetic energy
There is little or no interstellar dust or gas in which of the following galaxy types? What name is given to a galaxy with a smooth distribution ofbrightness and a round, spherical shape? Who developed the "tuning-fork" diagram connecting the differe..
A door 1.40 m wide and 2.20 m highweighs 280 N and is supported by two hinges, one 0.50 m from the top and the other 0.50 m from the bottom. Each hinge supports half the total weight of the door. Assuming that the door's center of gravity is at it..
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