Define the effective resistance
The edges of a cube consists of equal resistors of resistance R, which are joined at the corners. Let a battery be connected to two opposite corners of a face of the cube. What is the efective resistance?
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The x-component of a velocity vector that has an angle of 32 degrees to the +x-axis has a magnitude of 6.0 m/s. what is the magnitude of the velocity? what is the magnitude of the y-component of the velocity?
In Mostar, Bosnia, the ultimate test of a young man's courage once was to jump off a 400-year-old bridge (now destroyed) into the River Neretva, 23 m below the bridge. (a) How long did the jump last? (b) How fast was the diver traveling upon impact
The conducting path between the right hand and the left hand can be modeled as a 12 cm-diameter, 180cm-long cylinder. The average resistivity of the interior of the human body is 4.7(Omega*m) .
While crossing campus you get your directions mixed up. You start traveling 283 m East; you then travel 135 m traveling 44 North of East; then you travel 313 m West. What is your final distance from where you started?
A block weighing 100lbs rests on a rough level plane. The coefficient of friction is between the block and the plane is 0.42. what inclined push 45 degrees from the horizontal will cause the block to move?
An object at distance s=20.0 cm from the lens has an image at distance s' from the lens. Is there a second lens with nred, nviolet, and R2 as stated above, but a different R1 so that s' due to violet light and the second lens equals that due to re
When a current flows in an aluminum wire of diameter 4.35 mm, the drift speed of the conduction electrons is 2.57 × 10-4 m/s. What is the electron current in the wire? The conduction electron density in aluminum is 6.00 × 1028 m-3.
A 0.63 kg ball thrown directly upward with an initial speed of 13.7 m/s reaches a maximum height of 8.1 m. What is the change in the mechanical energy of the ball-Earth system during the ascent of the ball to that maximum height?
You carry 7.0 kg bag of groceries 1.2m above ground at constant velocity across a 2.3 m room. How much work do you do on bag in process?
Find the transformation matrix R that describes a rotation of 90 degrees about an axis from the origin through the point (1,1,0). The rotation is clockwise as you look down the axis toward the origin.
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