##### Gaussian Cube Electric Field
An electric field given by = 6.0· - 3.9(y2 + 3.5)· pierces a Gaussian cube of edge length 3.2 m and positioned as shown in Fig. 23-56. (The magnitude is in newtonsper coulomb and the position x is in meters.) What net charge (in Coulombs) is enclosed by the Gaussian cube?...
##### A nonconducting spherical shell
A nonconducting spherical shell, with an inner radius of 4 cm and an outer radius of 6 cm, has charge spread nonuniformly through its volume between its inner andouter surfaces. The volume charge density ? is the charge per unit volume, with the unit coulomb per cubic meter. For this shell ? = b/r w...
##### Problem 4
An archer shoots an arrow with a velocity of 30 m/s at an angle of 20 degrees with respect to the horizontal. An assistant standing on the level ground 30 m downrangefrom the launch point throws an apple straight up with the minimum initial speed necessary to meet the path of the arrow. What is the ...
##### Homework 4, Item 1
A road race is taking place along the track shown in the figure (Figure 1) . All of the cars are moving at constant speeds. The car at point F is traveling along astraight section of the track, whereas all the other cars are moving along curved segments of the track. Let be the velocity of the car a...
##### A charge of +1nC and a dipole with charges +9nC and -9nC separated by .3mm contribute to a net...
A charge of +1nC and a dipole with charges +9nC and -9nC separated by .3mm contribute to a net electric field at location A. A -3 nC charge is placed, at rest, atpoint A. Determine what external electric field is needed in order to keep the -3 nC charge in place. (Note: there is a q+ = +9nC, and q- ...
##### Electric field on the axis of a washer
A thin, flat washer is a disk with an outer diameter of 14 cm and a hole in the center with a diameter of 2 cm. The washer has a uniform chargedistribution and a total charge of 8 nC. What is the electric field on the axis of the washer at a distance of 32 cm from the center of the washer?(Enter the...
##### Help
Disturbed by speeding cars outside his workplace, Nobel laureate Arthur Holly Compton designed a speed bump (called the "Holly hump") and had it installed. Suppose a 1800-kg car passes over a hump in a roadway that follows the arc of a circle of radius 19.6 m (a) If the car travels at 25.0 k...
##### Carnot Engine
A Carnot engine receives 250 kJ s-1 of heat from a heat-source reservoir at 525?C and rejects heat to a heat-sink reservoir at 50?C. What are the power developed andthe heat rejected?...
##### The image distance in this case is...?
A lens of focal length 20 cm has an object of height 3.0 cm placed 100 cm in front of it. The imagedistance in this case isA) 17 cm. B) 33 cm. C) -25 cm. D) 20 cm. E) 25 cm.Please show work!...
##### HW 6 Item 13
A loudspeaker of mass 22.0{rm kg} is suspended a distance of h = 2.00{rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has alength of l = 3.10{rm m} . What is the tension T in each of the cables?...

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