A small object is connected to a lightweight cord of length L = 1.90 m  that is tied to a point P, as shown in the figure.     The object, string, and point all lie on a frictionless, orizontal table. The object has a mass m = 0.0100 kg, a charge q = +1.50 µC and is released from rest when the string makes an angle θ = 60.0° with a uniform electric field of magnitude  E = 310 V/m. Determine the speed (in m/s) of the object when the string is parallel to the electric field.  ????? m/s

Q: Identical 45 µC charges are fixed on an x axis at x = ±3.2 m. A particle of charge q = -15 μC is…

A:

Q: You are working on a research project in which you must control the direction of travel of electrons…

A: Given that, l=0.500 md=2.85 cmvi=7.70×106m/sWe, have to determine θmin =? and θmax=?The vertical…

Q: Two hard rubber spheres, each of mass m = 16.3 g, are rubbed with fur on a dry day and are then…

A: Given: Mass of hard rubber sphere, m=16.3 g Length of insulating string, L=5.50 cm Distance of…

Q: If the electric field between two parallel plates is maintained at a constant strength of E =…

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Q: In Rutherford's famous scattering experiments that led to the planetary model of the atom, alpha…

A: given -  charge of alpha particle = +2e mass of alpha particle = 6.64 ×10-27 kg initial velocity =…

Q: The ammonia molecule has a dipole moment of 5.0×10−30 C·m. Ammonia molecules in the gas phase are…

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Q: In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at…

A: Given ,     K.E of alpha particle =3.98 MeV =  3.98×106 eV To find the nearest distance of approach…

Q: An electrically neutral model airplane is flying in a horizontal circle on a 2.0-m guideline, which…

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Q: Identical 56 µC charges are fixed on an x axis at x = ±2.5 m. A particle of charge q = -15 µC is…

A: (a) The potential at y=4.5 m due to the charges on the x axis is: Vy = 2(kQ/r) = 2kQx2+y2=2(9 x…

Q: n 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a…

A: Given,charge in the alpha particle, qα = +2echarge on the gold nucleus, qn = +79eInitially when the…

Q: The ink drops have a mass mmm = 1.00×10−11 kg each and leave the nozzle and travel horizontally…

A: Given: Mass of ink drop=1.00×10−11 kg velocity (v)= 15.0 m/s Length of parallel deflecting plates…

Q: An insulating sphere has a positive charge of +1.50x10-9C uniformly spread throughout its volume.…

A: charge (Q) spread throughout insulating sphere= 1.50×10-9 C q = -2.3×10-6 Cmass (m) = 1.40×10-4 kg…

Q: A particle with charge q = +4e and mass m = 6.47 * 10^-26 kg is injected horizontally with a speed…

A: The objective of the question is to find out the time it takes for the particle to pass through the…

Q: An electron with speed vo = 12.6 x 106 m/s is traveling parallel to a uniform electric field of…

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Q: A charge per unit length given by A = 2.40 µC/m is distributed uniformly along the circumference of…

A: Given,

Q: A charged sphere with a mass of 8.35 g is hanging from a string attached to the ceiling. When…

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Q: A small ball with charge q = 12.8 μC and mass m = 0.065 kg is suspended from the ceiling by a string…

A: Given:charge, q = 12.8 μC mass, m = 0.065 kg string of length, L = 2 mElectric field E of…

Q: A particle with charge 8.75 x 10-13 C moves a distance d = 0.30 m in a straight line between points…

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Q: The figure shows an electric dipole. What is the magnitude of the dipole's electric field at point…

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Q: A particle of charge +9.5 µC is released from rest at the point x = 62 cm on an x axis. The particle…

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Q: Oppositely charged parallel plates are separated by 6.28 mm. A potential difference of 600 V exists…

A: Given values:Potential difference between the plates, V = 600 VDistance between the plates, d = 6.28…

Q: A positive point charge q1= +4.00 x10^-4 C is held fixed at the origin. A small object with negative…

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Q: An alpha particle (*He nucleus, charge +2e) starts from rest and accelerates over a distance of 1.0…

A: Change in KE = Work DoneChange in KE = FdChange in KE = EqdKEf-KEi =EqdKFf = EqdKEf =E(2e)d =…

Q: How far does the electron travel before coming to rest? Provide the solution:__________ x 10-4 m

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Q: Two hard rubber spheres, each of mass m - 14.9 g, are rubbed with fur on a dry day and are then…

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Q: The charge q = =D1.6 X 10-19 n3D1.7 X 10-27 kg, potential C, mass m 3D difference (voltage) = 1…

A: The change in potential energy of the charge particle with charge q when it goes potential…

Q: In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at…

A: The initial energy of the α particle = V×e                                                        =…

Q: An alpha particle with kinetic energy 11.0 MeV makes a head-on- collision with a lead nucleus at…

A: We can find the distance of the closest approach of the two particles. At the point of the closest…

Q: An electric dipole consisting of charges of magnitude 4.70 nC separated by 8.20 um is in an electric…

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Q: Two hard rubber spheres, each of mass m = 14.9 g, are rubbed with fur on a dry day and are then…

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Q: An electron is shot directly toward the center of a large metal plate that has surface charge…

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Q: A small object is connected to a lightweight cord of length L=1.20 m that is tied to a point P, as…

A:

Q: In Rutherford's famous scattering experiments (which led to the planetary model of the atom), alpha…

A: charge on Alpha Particle=+2e Charge of gold nucleus= +79e Speed at which alpha particle was fire=…

Q: dentical 42 μC charges are fixed on an x axis at x = ±3.4 m. A particle of charge q = –20 μC is then…

A: Given: Q1 = 42 μC Q2 = -42 μC q = -20 μC OA=OB = 3.4 m OP = y m OQ = 4.5 m

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.