(a Determine the electric field strength at a point 1.00 cm to the left of the middle Charge sh in the gure below. Enter the magnitude of the e ric eldon . 6.00 μC 1.50 μC -2.00 μC -3.00 cm 2.00 cm N/C (b) If a charge of-7.81 μc is placed at this point, what are the magnitude and direction of the force on it? magnitude 8 V-Select-- toward the right Need Hel toward the left downward

a. Determine the magnitude and direction of the electric field at point P, 20 cm away from charge Q = +10?C b. Two charges are lying on the horizontal axis and are 0.2m away from each other. The charges are: ?1 =20?? ??? ?2 = −40??. Determine the magnitude and direction of the force on q1 by q2. c. An electron (q = -1.6 x 10-19 C) is initially at rest. At some time later, the electron accelerates due to a 5kV potential. Determine the change in electrical potential energy and final speed of the electron. Write down three examples of the use of electricity and magnetism in the medical field. For example, an automated external defibrillator (AED) consists of a capacitor to store electrical energy and electrode pads to deliver an electrical shock to your heart. As a result, an automated external defibrillator (AED) with CPRincreases the chances of restoring a victim’s heart rate after a sudden cardiac arrest. Use three of your ownexamples

Figure P15.10 6.00 μC 3.00 cm 1.50 μC -2.00 μC 2.00 cm

An electron has an initial velocity of 4.9 × 106 m/s in a uniform 2.25 × 105 N/C electric field. The field accelerates the electron in the direction opposite to its initial velocity. a.  What is the direction of the electric field?  b.How far does the electron travel before coming to rest in m?  c.   How long does it take the electron to come to rest in s?  d. What is the magnitude of the electron's velocity (in m/s) when it returns to its starting point in the opposite direction of its initial velocity?