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A spherical insulator of radius R is placed at distance of 10R from a spherical conductor of radius R/2 (see Fig). The charge density of the insulator is -ρ and the conductor is σ. The charges are uniformly distributed over the volume of the insulator and the surface of the conductor. A particle with mass of m and positive charge of Q is placed at rest at an equal distance to the centers of both spheres. Find out in which direction the particle moves and its final velocity when hits one of the spheres. . Use: R = 2.0 cm, -ρ = - 1.0 μC/m3, σ- 60.0 nC/m2, Q = 8.85 μC and m = 0.3 ng.
A 0.30 kg mass, attached to the end of a 0.60 m string, iswhirled around in a circular horizontal path. what maximum speed can the mass have
In a mass spectrometer the charged particles have to reach a common specific speed. To do so, they are accelerated with an electric field, determine the direction of the magnetic force
A 1.00 × 104 kilogram railroad car is rolling at 2 m/s when a 3000 kilogram load of gravel is suddenly dropped in. Determine the car speed just after the gravel is loaded
A small dog has thick fur, with a thermal conductivity of 0.040W/(m • K). The dog's metabolism produces heat at a rate of36 W and its internal (body) temperature is 36°C. calculate what is the outside temperature
A standing wave on a string that is fixed at both ends has frequency 80.0 Hz. What is the speed of the waves on the string
Two horses pull a large crate of negligible mass at constant speed across a barn floor by means of two light steel cables. What is the work done by each horse if the box is moved a distance of 30 m
Suppose your 50.0 mm focal length camera lens is 52.0 mm away from the film in the camera. How far away is an object that is in focus
An elevator moving upward approaches the top floor of a high rise building and begins to slow down at the rate of 0.96 m/s2. Calculate the apparent weight of the passenger if her mass is 65.0 kg
primary and secondary amines form hydrogen bonds among themselves. assume you have a solution of ethanamine ethylamine.
George just graduated from college and is going on his first job interview. He has learned that there are two other candidates. Because of the information he has learned about the serial position effect, George asks to be either the first or the last..
An object is located in front of a biconcave lens whose focal length is -125 centimeter. Estimate where is the image located? Find what are the characteristics
Galileo dropped a ball from the tower of Pisa. The ball hit the ground in 3 seconds. what was the speed on striking the ground
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