SET YOUR iCLICKER to Frequency CC:1) Press and hold the power button until the blue light blinks, then release.2) With the blue light blinking, press CC (press the C key twice). Watchfor the green light. Blue light will stop blinking.3) Your clicker is now set to frequency CC, and you are ready to vote. 4) Do not turn off your clicker or you will have to reset frequency at next question.Question: Did you correctly set your clicker to frequency CC?A) Yes! I am able to vote.B) No! I can't vote. How am I supposed to vote B when I can't vote?Survey Question:What was your last physics course?A) I took PHYS2010 last semester.B) I took PHYS2010 or PHYS1110 at CU, but not last semesterC) I took a College-level Physics 1 class some place other than CUD) I placed out of College Physics 1 with AP creditE) I never took a Physics 1 course: Holy Mackerel! I'm in the wrong course!Have you ever used CAPA (online homework) before?A) YesB) NoQ16-1. Two uniformly charge spheres are attached to frictionless pucks on an air table. The charge on sphere 2 is three times the charge on sphere 1. Which force diagram correctly shows the magnitude and direction of the electrostatic forces on the two spheres?A)E)D)B)C)Q16-2. A charge +Q is fixed in space. A second charge +q is brought a distance r away. Then +q charge is removed and another charge +2q is brought adistance 2r away. Then the +2q charge is removed and a charge +5q is brought a distance 2r away.Which charge feels the largestforce?A) +qB) +2qC) +5qD) Two of the charges feel thesame size force.+Q+qr+Q+2q2r+Q+5q2rQ16-3Two vectors A and Bur ur are shown. Consider the vector sum C A B ur ur ur. What is Cy, the y-component of Cur?BAyxA) 3B) 2C) –2D) –4E) None of these/don't know.Q16-4.An electric dipole consists of two equal and opposite charges (+q and –q) separated by some fixed distance l . A charge +Q is brought near the dipole and is positioned so that the distances to the +q and the –q charges are identical as shown below:What is the direction of the net electrostatic force on the +Q charge?+qℓ–q+QDCBE) Some other directionAQ16-5An electric dipole (+Q and –Q separated by a distance d ) is placed along the x-axis as shown. A positive test charge +q is placed at position A to the right of the dipole. The positive test charge feels a force that is A) zero. B) to the right. C) to the left. If the test charge +q is removed, electric field at position A is A) zero. B) to the right C) to the left D) There is no electric field at point A, when the test charge is removed.If a negative test charge is placed at A, it feels a force A) zero. B) to the right. C) to the left.If a negative test charge –q is used to measure the Electric field at A, theelectric field at position A is A) zero. B) to the right C) to the left +qAx+Q–QQ16-6. Two positive charges, each of size +Q, are equal distances from the origin as shown. What is the direction of the electric field at the point in empty space which forms a square with the two charges and the origin? Q16-7. Two charges +Q and – Q are located on the x-axis as shown, what is the magnitude of the electric field at point A?A) kQR2119 B) 4112RkQC) Zero D) kQR2191 E) None of these.+Q+QDCABFieldhere?xyE) No Field
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