Figure 22-44 Problem: 17. Module 22-3 The Electric Field Due to a Dipole (2-18) The electric field of an electric dipole along the dipole axis is approximated by Eqs, \( 22-8 \) and \( 22-9 \). If a binomial expansion is made of Eq. \( 22-7 \), what is the next term in the expression for the di- pole's electric field along the dipole axis? That is, what is \( E_{\text {nex }} \) in the expression \[ E=\frac{1}{2} \frac{q d}{3}+E_{\text {next }} \text { ? } \]

Una palla di massa \( m_{1}=24 \mathrm{~g} \), che viaggia alla velocità \( v_{1} \), urta elasticamente una palla ferma di massa \( m_{2}=\frac{1}{2} m_{1} \). Dopo l'urto, la seconda palla va a colpire elasticamente una terza palla ferma, di massa \( m_{3} \). Tutti gli urti avven- gono lungo la stessa retta. Quale deve essere la massa \( m_{3} \) affinché la sua velocita dopo l'urto sia uguale a \( v_{1} \) ?

Un dipôle ohmique de résistance \( 3300 \Omega \) est traversé par une tension de 900 mV . Calculer l'intensité qui traverse se dipôle.

हल दिया है-गेंद का प्रारम्भिक वेग \( 20 \mathrm{~cm} \mathrm{~s}^{-1} \) है। मेज के द्वारा गेंद पर घर्षण बल लगने के कारण गेंद का वेग 10 s में शून्य हो जाता है। वेग-समय ग्राफ एक सरल रेखा है जिससे यह पता चलता है कि गेंद एक नियत त्वरित बल के साथ चलती है।

Train moving with speed of \( (40 \mathrm{~m} / \mathrm{s}) \) the driver have resorted to the use of brakes to reduce the speed of the train movement by rate \( \left(-2 \mathrm{~m} / \mathrm{s}^{2}\right) \) Calculate: a) The amount of time it takes for the train even stops completely. b) The amount of distance traveled since the train began braking until it stops

1. Calculer la tension à ses bornes 2. On triple la tension à ses bornes, quelle est alors l'intensité qui la traverse?