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If the magnitude of the drift velocity of free electrons in a copper wire is 6.48 * 10-4 m/s, what is the electric field in the conductor?
Qualitatively speaking what is the difference between flux and intensity measurements? What are the units of each, How do flux and intensity vary with distance from source
A 42.3 ohm resistor and a 91.2 ohm resistor are connected in parallel, and the combination is connected across a 120V dc line. What is the total current through the parallel combination
A 2-m3 vessel contains air at 40oC and 236 kPa. The vessel is fed with fresh air until the air inside the vessel reaches 93oC and 1 MPa. Calculate how much air was added to the vessel
Four point charges have the same magnitude of 2.57 10-12 C and are fixed to the corners of a square that is 4.20 cm on a side. Determine the magnitude of the net electric field that exists at the center of the square
A cosmic-ray proton in interstellar space has an energy of 17.0 MeV and executes a circular orbit having a radius equal to that of Jupiter's orbit around the Sun (7.78 x 10^11 m). What is the magnetic field in that region of space.
The dynamic behavior in the worked example in this chapter was strongly influenced by the material recycle. Consider a modified process without recycle.
A 255 kilogram piano slides 4.2 meter down a 30 degrtee incline and is kept from accelerating by a person who is pushing back on it parallel to the incline. estimate the work done by the man on the piano
A single conservative force F(x) acts on a 2.9 kg particle that moves along an x axis. The potential energy U(x) associated with F(x) is given by U(x) = -3.8xe^-x/5, What is the mechanical energy of the system
An object is placed 12 cm in front of a concave mirror whose focal length is 20 cm. The object is 3.8 cm tall. Establish (a) the location of the image, taking a real image as a positive value and a virtual image as a negative value.
Describe the directions of social and economic change in the eighteenth-century colonies. Minimum of 120 words
What is linear acceleration
A crate of mass 12.5 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, How much mechanical energy is lost due to friction
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