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Question: People have proposed driving motors with the earth's magnetic field. This is possible in principle, but the small field means that unrealistically large currents are needed to produce noticeable torques. Suppose a 20-cm-diameter loop of wire is oriented for maximum torque in the earth's field. What current would it need to carry in order to experience a very modest 1.0Ã-10âˆ'3Nâ‹...m torque?
Two forces, of magnitude F1=50.0 N and F2=22.0 N, act in opposite directions ona block which sits atop a horizontal frictionless surface as shown. Initially, the center of the block is at position xi=-4.00 cm.
Find the critical angle of incidence for a ray of light going from a diamond to air
An insect 3.75 mm tall is placed 20.0 cm to the left of a thin planoconvex lens. Calculate the location of the image this lens forms of the insect
Tarzan swings through the jungle by hanging from a vine. Immediately after he steps off the branch, is Tarzan's acceleration zero or nonzero
The sun's intensity at the distance of the earth is 1370 W/m2. 30% of this energy is reflected by water and clouds; 70% is absorbed. What would be the earth's average temperature (in ?C) if the earth had no atmosphere
What is the wavelength of a photon emitted from a hydrogen atom as an electron drops from the m=5 energy level to the n=2 energy level?
A 36.0 µF capacitor is connected to a 49.0 omegacap.gif resistor and a generator whose rms output is 30.0 V at 60.0 Hz. find The rms voltage drop across the resistor.
The image behind a convex mirror (radius of curvature = 62 centimeter) is placed 22 centimeter from the mirror. Estimate where is the object located
A pair of narrow slits is positioned 2 meter from a screen and illuminated with light made up of two wavelengths 604 nm and 512.60 nm. Find in meters the separation on the screen of first bright maxima due to both wavelengths
Illustrate the basic environments (legal, social, economic) in which a business operates. You are encouraged to use the library for additional sources to support your description. Remember to use APA format for in-text citations and aligned refer..
if turns ratio of primary to secondary coil of transformer is 1:3 and voltage on primary coil is 10 volts. what is voltage of seconday coil
A block of wood of mass 0.938 kg is initially at rest. A bullet of mass 0.0492 kg traveling at 107 m/s strikes the block and becomes embedded in it. With what speed do the block of wood
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