Two light spheres each of mass 2.0g are suspended by light strings 10cm in length. A uniform electric field |E| = 4.42 × 105N/C is applied in the horizontal direction. The charges on the spheres are equal and opposite. For what charge values will the spheres be in equilibrium at an angle θ = 10° ?
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Two light spheres each of mass 2.0g are suspended by light strings 10cm in length. A uniform electric field |E| = 4.42 × 105N/C is applied in the horizontal direction. The charges on the spheres are equal and opposite. For what charge values will the spheres be in equilibrium at an angle θ = 10° ?
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- A small rubber sphere has a mass of 3.64 g and a charge of -18.6 µC. It levitates, motionless, when placed in a uniform electric field perpendicular to the ground. What is the magnitude of the electric field (in N/C)? N/C What is the direction of the electric field? O upward O downward O east westA charged cork ball of mass 1.10 g is suspended on a light string in the presence of a uniform electric field as shown in the figure below. When E = (2.80 î + 5.20 ĵ) ✕ 105 N/C, the ball is in equilibrium at θ = 37.0°. Find the charge on the ball.Inside a cathode ray tube, an electron is in the presence of a uniform electric field with a magnitude of 275 N/C. (a) What is the magnitude of the acceleration of the electron (in m/s2)? m/s2 (b) The electron is initially at rest. What is its speed (in m/s) after 1.20 ✕ 10−8 s? m/s
- A small plastic ball of mass m = 1.50 g is suspended by a string of length L = 25.0 cm in a uniform electric field of magnitude E = 1.00 x 10³ N/C as shown in the figure. If the ball is in equilibrium when the string makes an angle = 17.5° angle with the vertical as indicated, what is the net charge on the ball? 10 E=1.00 x10³ N/C L mYou have built a device that measures the temperature outside and displays it on a dial as a measure of how far away from room temperature outside is. The way the dial works is that a needle with a charged ball on the end is placed between two charged parallel plates. The strength of the uniform electric field between the plates is proportional to the outside temperature. Given that the charged ball on the needle has a charge of −2.4 µC and the needle can be represented as a string with tension 0.350 N, and is at an angle of 22°, consider the following. What is the mass of the object? gWhat is the magnitude of the electric field? N/CThree charges are placed along the x-axis: q1 = 3.00 µC at X1 = -20.0 cm, q2 = -5.00 µC at x2 = 10.0 cm, and q3 = 6.00 µC at x3 = 25.00 cm. Determine the magnitude of the electric field at the origin. O 4 69x106 N/C O 2 96x106 N/C O 6 04x106 N/C O 4.31x106 N/C
- Two light spheres each of mass 2.0g are suspended by light strings 10cm in length.A uniform electric field |E| = 4.42 × 105N/C is applied in the horizontaldirection. The charges on the spheres are equal and opposite. For what chargevalues will the spheres be in equilibrium at an angle θ = 10?Two parallel, uniformly charged, infinitely long wires carry opposite charges with a linear charge density λ = 1.00 μC/m and are 4.22 cm apart. What is the magnitude of the electric field at a point midway between them and 44.2 cm above the plane containing the two wires?A small object of mass 3.54 g and charge −19.3 ?C is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field? magnitude direction