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 coefficient of static friction between the mug and the roof is 1.3, and the coefficient of kinetic friction is 0.3. What is the maximum acceleration of the car, so the mug does not slide off?
A uniformly charged sphere has a potential on its surface of 450 V. At a radial distance of 9.2 m from this surface, the potential is 150 V. What is the radius of the sphere, and what is the charge of the sphere?
An infinite line charge of uniform linear charge density = -1.1 C/m lies parallel to the y axis at x = -1 m. A point charge of 2.1 C is located at x = 2.0 m, y = 3.0 m. Find the x- and y-components of the electric field at x = 3.0 m, y = 2.5 m.
A Boeing 747 "Jumbo Jet" has a length of 61.3 m. The runway on which the plane lands intersects another runway. The width of the intersection is 27.0 m. The plane decelerates through the intersection at a rate of 5.77 m/s2 and clears it with a fin
When the mass is halfway between its equilibrium position and the end-point, its speed is measured to be 38.8 cm/s. Calculate the mass of the block.
The left ventricle of the heart accelerates blood from rest to a velocity of +23.2 cm/s. (a) If the displacement of the blood during the acceleration is +1.56 cm, determine its acceleration (in cm/s2). (b) How much time does blood take to reach it
A potential difference of V=24.0 V is applied across two capacitors in parallel, with capacitances 36.0 nF and 48.0 nF. What is the magnitude of the charge on one of the plates of the 36.0-nF capacitor?
When a potential difference of 7.35 volts is applied to a certain ohmic resistor, the current in the resistor is 0.919 A. What is the current when the applied potential difference is 13.3 volts?
In an ionic solution, 5.8 x 1015 positive ions with charge +2e pass to the right each second while 6.3 x 1015 negative ions with charge -e pass to the left. What are the magnitude and direction of current in the solution?
In a chase scene, a movie stuntman runs horizontally off of one building and lands on another 1 m higher. If the gap between the buildings is 4.5 m wide. At what angle must he jump at to make it?
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