Consider a wire with resistivity ρ in a circuit. It has leng…

Consider a wire with resistivity ρ in a circuit. It has length L1 and diameter d1. This wire has to be replaced by a wire of the same material but longer by a factor of 4. With the constraint that the resistance of the new wire has to be the same as the resistance of the original wire, what must the diameter of the new wire be?

Consider a wire with resistivity ρ in a circuit. It has leng…

Consider a wire with resistivity ρ in a circuit. It has length L1 and diameter d1. This wire has to be replaced by a wire of the same material but longer by a factor of 3. With the constraint that the resistance of the new wire has to be the same as the resistance of the original wire, what must the diameter of the new wire be?

Two point charges, q1 = [q1] μC and q2 = [q2] μC, are placed…

Two point charges, q1 = [q1] μC and q2 = [q2] μC, are placed on the corners of a rectangle as shown in the figure, where h = [h] m and w = [w] m. The y-component of the total electric field at the origin O is: Give your answer in units of N/C and round to the nearest whole number. Your answer should be numerical only, don’t type the units. Hint: Components of vectors can be positive or negative. For example, if a vector is pointing in the negative y direction, then the y-component should be negative. No partial credit for missing a negative sign.

[1] a.   Le serveur apporte le plat principal. [2]…

[1] a.   Le serveur apporte le plat principal. [2] b.   M. et Mme Latimer regardent la carte. [3] c.   Mme Latimer choisit une entrée. [4] d.   M. et Mme Latimer vont au restaurant. [5] e.   M. Latimer commande le plat principal. [6] f.   M. Latimer demande l’addition. [7] g.   Le serveur prépare la table.