Please help with number 4 only Please help with #4 only Circle the letter corres
ID: 1427506 • Letter: P
Question
Please help with number 4 only
Please help with #4 only
Circle the letter corresponding to the correct answer choice. If you are sure that your answer is correct and does not match any of those given, then write your answer on the blank space in f. For problem where you need to write in answers, correct units (SI system) must accompany the units. Leaving off the units will cost you 1/3 rd the points that answer, if the number is correct. Two equally charged particles, held 41.4 cm apart, are released from rest. The initial acceleration of the first particle observed to be 7.0 m/s^2 and that of the second particle is 4.0 m/s^2. If the mass of the first particle is 12.4 x 10^-7 kg, determine the of the second particle in kg. 4.34 x 10^(-6) kg 2.17 x 10^(-4) g. 2.17 x 10^(-6) kg. 7.17 x 10^(-3) g. 8.19 x 10^(-5) kg. Then determine the charge on the particles. 1.28 x 10^(-8) C. 3.72 x 10^(-9) C. 1.28 x 10^(-4) nC. 9.26 x 10^(-6) C. 5.28 x 10^(-6) C. Two hypothetical point particles, particle A, comprised of 6 electrons and proton and the particle B comprised of protons and an electron are separated by a distance of 7.8 nm to form an electric dipole. The dipole moment vector has magnitude C.m and points from particle to particle. The choose the correct answer below. 5.23 x 10^(-22). A > B, 5.23 x 10^(-22), B>A. 6.25 x 10^(-27), B > A. 6.25 x 10^(-27, A >B. The electric potential difference between the ground and a cloud in a particular thunderstorm is 1.2 x 10^12 V. What is magnitude of the change in the electric potential energy of a particle, whose charge is (2.7 x 10^15)e, that moves between these points (i.e., between the ground and the cloud)? 8.26 x 10^(5) J. 5.19 x l0^(8) J. 6.22^ x 10^(6)J. 3.19 x 10^(2) nJ. 5.I9 x 10^(8)W. (See Figure below) Consider a point charge q =163 nC. a point A (which is 438.5 nm distant from q). and a point: B (which is 372.5 nm distant from q). If these points (A and B) are diametrically opposite each other, what is the potential difference V_A - V_B = ? Put your answer in the form "+/-a.ba x 10^(x) unit". "Unit" refers to symbol for the unit for electrical potential in the SI system of measurements. 5.93 x 10^(8)V. -7.67 x 10^(3)J. -7.67 x 10^(3)V. -5.93 x 10^(8)J. -5.93 x 10-(8)V. A flat parallel plate capacitor has circular plates of 75.3 cm radius and 0.08 mm separation. Calculate the capacitance points). 2.97 x 10^(4)nF. 2.44 x 10^5)pF. 1.97 x l0^(2)F. 1.97 x 10^(5)pF. 3.87 x 10^(6)pF. What charge will appear on the capacitor plates if a potential difference of 9.0 V is applied to it? 2.73 x 10^(3) pC. 1.77 x 10^(3)nC. 6.78 x 10^(1) C. 8.97 x 10^(4) nC. 1.37 x 10^(2) mC. The "plates of a spherical capacitor have radii 8.60 cm and 9.5 cm. The space between the two spheres is filled with a material with dielectric constant of 15.0. Calculate the capacitance. 1.51 x 10^(-9)F. 2.58 x 10^(-5)nF. 1.61 x 10^(-9)nF. 7.51 x 10^(-9)F. 1.54 x 10^(-7)pF.Explanation / Answer
4) We know that V = kq/r
So, VA - VB = kq[1/rA - 1/rB] = (9*10^9*163*10^-9)*[(1/438.5e-9) - (1/372.5e-9)]
= -592759024.44 V = -5.93*10^8 V (option e is correct)