Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions. The wires are separated by 20 cm. At what point between the two wires do they produce the same strength magnetic field?
A) 8.0 cm from the 20 A wire
B) 18 cm from the 20 A wire
C) 12 cm from the 20 A wire
D) 16 cm from the 20 A wire
E) 4.0 cm from the 20 A wire
D
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A pilot drops a package from a plane flying horizontally at a constant speed. Neglecting air resistance, when the package hits the ground the horizontal location of the plane will
A) be behind the package. B) be over the package. C) be in front of the package. D) depend of the speed of the plane when the package was released.
If the Moon is on the ecliptic, new, and at its farthest distance from Earth, we will get a(n) ________ eclipse
A) annual lunar B) total solar C) partial solar D) total lunar E) annular solar
The distance between the ruled lines on a grating is 1770 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band
What is the longest wavelength that appears in the third order spectrum? A) 590 nm B) 570 nm C) 550 nm D) 530 nm E) 610 nm
The condensation sequence cannot explain the composition of the terrestrial and Jovian planets
Indicate whether the statement is true or false