A square conducting wire, in a plane with an infinitely-long current-carrying wire, is oriented with one of its sides parallel to the long wire. The square is equipped with an ideal battery (which doesn't contribute to the physical dimensions of the square) and exhibits a fixed resistance. It is pulled at a constant speed directly away from the long wire, while remaining in the same plane. The grid lines give an indication of how the dimensions of the square compares to the position of the square relative to the wire at a single moment in time.

9. A toy cart at the end of a string 0.70 m long moves in a circle on a table. The cart has a mass of 2 kg and the string has a breaking strength of 40 N. Calculate the maximum speed the cart can attain without breaking the string? \( (3.74 \mathrm{~m} / \mathrm{s}) \)

3) una cuerda de guitarra se tiempla con el ánimo de generar armónicos sonoros pero Kevin nota que al extenderla en los puntos extremos de templanza genera 4 armónicos de ondas transversal-s según viviana el valor de lambda (longitud de onda) que se obtendrá es de 98 cm como observadora referente, cuando Kevia impulsa la cuerda trasversalmente I se genera una velocidad ondulatoria de \( 4,40 \mathrm{~m} / \mathrm{s} \). osc si la masa de la cuerda sonora es de 190 gramos ayudémosle a encontrar: - La longitud L dela cuerda - El valor de valor del \( \boldsymbol{\mu} \) (miu armónico) - El valor de la tensión de la cuerda - La frecuencia de oscilación (f) - La potencia de emisión de la onda

Examples How many electrons are transferred if an object has a charge of \( 7,5 \times 10^{-9} \mathrm{C} \) ?

9. A toy cart at the end of a string 0.70 m long moves in a circle on a table. The cart has a mass of 2 kg and the string has a breaking strength of 40 N. Calculate the maximum speed the cart can attain without breaking the string? ( \( 3.74 \mathrm{~m} / \mathrm{s}) \)

ORA PROVA TU Un motoscafo offshore si ferma in \( 10,0 \mathrm{~s} \), frenando con accelerazione costante. In questo intervallo di tempo, percorre 140 m . - Calcola laccelerazione del motoscafo. Determina la sua velocità iniziale in \( \mathrm{km} / \mathrm{h} \). \( \left[-2,80 \mathrm{~m} / \mathrm{s}^{2} ; 101 \mathrm{~km} / \mathrm{h}\right] \)