The figure shows three charges and the net force on charge -q. Charge Q is some multiple a of q. What is a? 45° 2L Q = aq
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- A positive charge of 4 µC exerts a force of 8 N on an unknown charge 20 cm away. The unknown charge is: Select one: Oa. +44 µC b. None of these O C. +8.9 µC d. -8.9 µCan electrostatic force of 4.2 x 10 N. How far apart are the centers of the two charges? 5. How many electrons st be removed from a neutral, isolated conducting sphere to give it a positive charge of 8.0 x 10 C? ANSWERS 1. a) 1.2 x 10 'N b) 1.5 x 10 N c) 3.3 x 10 0'N 2.1.8 x 10 N 3.1.9x 10 20N 4.5.09 x 1019 m 5. Alicia got 5 x 10 27 electrons DELLA charge of 2 µC is 1.08 cm to the left of a -2.1 nC charge. What is the force on the first charge, in newtons? Use + for right and - for left.
- Three Charges are arranged as shown, 2 meters apart from each other. All charges are 1C in magnitude, with the signs shown. 2 m () 1 C Đ 1 C 3) The magnitude of the net force on the middle charge is a. Zero c. -2.3x10⁹ J d. 1.1x10¹⁰ J e. -6.8x10⁹ J b. 4.5x10⁹ N c. 2.3x10⁹ N d. 2.8x10⁹ N e. 1.7x10⁹ N 4) The potential energy of this arrangement of charges is a. Zero b. 4.5x10⁹ J 2 m 0: -1 CIn the figure, the point charges are located at the corners of an equilateral triangle 29 cm on a side. What is the direction of the force on qa in degrees above the negative x-axis with origin at qa?5 a. How many electrons are needed to form a charge of Q1 = -7 nC? b. If you touch two charge balls of - 60 nC and 70 nC, what will be the net charge after touching them together?
- Three charges are placed in the x-y plane. Two charges of 2 nC and 1.5 nC are placed at the points (3,0) and (0,4) respectively. The distances are designated in meters. The constant Ke= 9 x 10^9. Find: 1. The x component of the force on a charge of -4.6 nC placed at (0,0). Please give the value with sign in units of nJ. 2. The y component of the force on a charge of -4.6 nC placed at (0,0). Please give the value with sign in units of nJ. 3. The x component of the Electric field on the same charge from 1 and 2. 4. The y component of the electric field on the same charge from 1 and 2.If you touch 62 nC and -11 nC charges, what will be the net charge after touching them together?A charge +q is placed at x = 0 and a charge +4q is placed at x = 5 units. Where, along the x-axis is the net force on a charge Q equal to zero?a). x = 1.27 unitsb). x = 1.52 unitsc).x = 1.67 unitsd). x = 1.21 units e). x= 1.48 units
- Two objects charged with an equal amount of charge interact with each other with a force of 4.37 Newton when separated by a distance of 15.2 cm. Determine the magnitude of the charge on each object. Answer:_______x10-6 C Enter only the coefficient of the scientific notation. For example, you'd enter just just 1.27 if you get 1.27x10-⁹.Point charges q1 55μC and 92 = - 40μC are placed 0.8 m apart. Hint a. What is the force on a third charge 93 = 15μC placed midway between 9₁ and 92? Force on q3 is 12.656 N, in the direction toward q2 b. Where can q3 be placed so that the net force on it is zero? If q3 is placed near q2 directly opposite from q1 .4319 Question Help: Message instructor Submit Question OF at a distance of " x m from 9₁, the net force on it will be zero. O MacBook Pro+Q -2Q Two charges, as shown above, +Q and -20Q are fixed in place. A test charge +g is put an equal distance between the two fixed charges. If the fixed charge +Q exerts a force of F on the test charge, what is the net force on the test charge? O a Ob 2F O d 3F