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A piece of iron is heated to 900?C.
A. What is the median wavelength of its blackbody radiation?
B. What temperature would give a median wavelength of half of what you found in part A?
A cube of ice is taken from the freezer at -8.0 and placed in a 113 aluminium calorimeter filled with 306 of water at room temperature of 20.0. The final situation is observed to be all water at 15.0.
The next three problems refer to two point charges A and B on the x-y plane, Find the x-coordinate of the point on the x-axis where the electric field is zero
Three identical charges of 3.0uC are placed at the vertices of an equilateral triangle which measures 30cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges
A cylindrical capacitor has an inner conductor with a radius of 1.6mm and an outer conductor with a radius of 3.8mm, A cylindrical capacitor has an inner conductor with a radius of 1.6mm and an outer conductor with a radius of 3.8m
Like all stars, our sun converts mass into energy which radiates (spherically) in all directions, Calculate the rate at which the sun is losing mass
A fire truck attaches two fire hoses to a hydrant to fight a fire. each hose has a diameter of 20 cm. How many kilograms of water are put on the fire in 30 minutes
calculate the average acceleration in m/s^2 (meter per second square), using a coordinate system with the X axis in the direction of the car's original motion and the Y axis toward the side of the road to which the car skids.
At a distance of 20m from a source of sound, the sound level is 40 dB. what will the sound level be
Suppose you wish to lean a 3.00 m ladder against a smooth, vertical wall. The ladder's center of gravity is 2/3 of length from the top. If the coefficient of static friction between the ladder and the floor is 0.60, what is the largest angle ladde..
Two long, parallel wires carry currents of 0.245 A in the same direction. If the wires are 0.034 m apart, what is the force per unit length between the wires
Two nanowires are separated by 1.6 nm as measured by STM. Inside the wires the potential energy is zero, but between the wires the potential energy is greater than the electron's energy by only 1.4 eV.
A high-speed lifting mechanism supports a 880-kg object with a steel cable that is 39.0 m long and 4.00 cm2 in cross-sectional area. Determine the elongation of the cable
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