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A positively charged bead (point-like charge q) moves with 710 frictions along a vertical rod, as sketched in Fig., subject both to the Earth gravity and to the electric force due to another positive point-like charge Q fixed at the lower end of the cod. The bead is observed to execute an oscillating motion between "levels" A and B shown in the figure along with the relevant geometrical dimensions. Based on this observation, find mass m of the bead. The bead and fixed charge have small sizes that can be neglected in comparison with other dimensions.
A soccer ball, which has a circumference of 70.0 centimeter, rolls 14.0 yards in 3.35 second. Obtain the average angular speed of the ball during this time
A 8.10-kg hanging object is connected by a light, inextensible cord over a light, find the tension in the string
An electron is released from rest in a vacuum between two flat, parallel metal plates that are 9.0 cm apart and are maintained at a constant electric potential difference of 620 Volts. what is its speed just before it strikes the positive plate
an electric dipole consists of charges 2e and -2e separated by 0.60 nm. it is in an electric field of strength 4.6 x
what is the velocity of plane with respect to the ground. A nonconducting sphere has radius R = 2.53 cm and uniformly distributed charge q = +6.00 fC. Take an electric potential at the sphere's center to be V0 = 0.
On the Apollo 14 mission to the moon, astronaut Alan Sheppard hit a golf ball with a 6 iron. For how much more time was the ball in flight
Calculate the critical angles for the following materials when surrounded by air. Assume that ? = 589 nm
A glass plate (n = 1.60) is covered with a thin, uniform layer of oil (n = 1.29). A light beam of variable wavelength from air is incident normally on the oil surface. Observation of the reflected beam shows constructive interference at 511 nm. Deter..
A new circus act is called the Texas Tumblers. Lovely Mary Belle swings from a trapeze, projects herself at an angle of 53, and is supposed to be caught by Joe Bob, whose hands are 6.10 above and 8.02 horizontally from her launch point. You can ignor..
In the United States, Union membership has greatly declined since the 1970's. 1. IDENTIFY two of the five reasons attributable to this fact. 2. What is your opinion on Unions? Have you, or a family member, been a member of a Union?
Express your answers using two significant figures. Enter the x and y coordinates of the charge separated by a comma.
Two 12-cm-diameter charged disks face each other, 20cm apart. Both disks are charged to - 70nC. What is the electric field strength between the disks
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