Which of the following statements about charging objects is FALSE. Select one: O If an object gains electrons it becomes positively charged. O If an object gains electrons it becomes negatively charged. O Charges cannot travel in an insulator. O Charges can travel in a conductor,

are the charge A helium nucleus, called an alpha particle, has a charge of 2e and mass of 4mp, where e and and mass of a proton, respectively. mp Starting from rest, a proton and an alpha particle are accelerated through a constant electric field E. After a time At, which particle has more kinetic energy? O (a) The alpha particle O (b) They have the same kinetic energy O (c) The proton

Which statements A to E are true? In the process of electrostatic induction OA negative and positive charges are separated O B. a charge is produced by friction OC. a positive charge induces a positive charge O D. electrons are injected into an object O E. a conductor is rubbed with an insulator

A point charge of 33 uC is placed at a distance of 36 cm from another identical charge. A charge of -1.5 uC is transferred from point a to point b as shown in the figure. Determine: a) The change in electrical potential energy b) If the -1.5 uC charge has an initial velocity of zero. What is its final velocity if it has a mass of 5.0 x 10-15 kg?

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Ch 18 q3 In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward. This result was not consistent with then current models of atomic structure and led Rutherford to propose the existence of a very dense concentration of positive charge at the center of an atom—the atomic nucleus. The alpha particle has a charge of +2e and the gold nucleus a charge of +79e. Suppose that an alpha particle is initially a great distance from the gold, has a kinetic energy of 4.20 MeV (4.20  106 eV), and is headed directly at a gold nucleus. How close will the particle come to the center of the nucleus? Treat the nucleus and the alpha particle as point charges.

EVALUATE THE STATEMENT. Inserting a dielectric material between two charged parallel conducting plates, originally separated by air and still connected to a battery, will increase both (I) capacitance and (II) charge.     I is true, II is false     I is false, II is true     Both I and II are true     Both I and II are false

The electric field lines from a BO positively charged sphere are shown. Consider point A and B in the figure. Which point is at a higher voltage? A)A B) В C) Both are at the same voltage D)Cannot be determined As O A +

I need help with the first two parts of the question.  Thanks!