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Two large thin metal plates with surface charge densities of opposite signs however equal magnitude of 44.27 ×10–20 Cm–2 are placed parallel and close to each other. What is the field?
1. To the left of the plates?
2. To the right of the plates?
3. Between the plates?
Three polarizing filters are stacked with the polarizing axes of the second and third at 30 and 75.0, find the intensity of light emerging from each filter
consider a crate at rest on a factory floor. As the pair of workers start to lift it, What happens to the support force acting on the workers feet
A room with dimensions 10 x 10 x 20 meters is filled with air at 20 degrees C, 101 kPa and relative humidity 0.8. What is the mass of water vapor in the room, in units of kg
A small device based on the confinement of a proton in a 1 dimensional box is found to have a ground (i.e. n = 1) level energy of 16.9 keV. Determine the width of the box
By how much will volume of coolant in an automobile radiator increase when its temperature increases by 130 C° if the initial volume of coolant is 19 liters and its thermal coefficient of expansion is 5.0 10-4 (C°)-1?
Figure below shows two circular regions R1 and R2 with radii r1 = 21.9 cm and r2 = 31.0 cm. In R1 there is a uniform magnetic field of magnitude B1 = 52.7 mT directed into the page, and in R2 there is a uniform magnetic field of magnitude B2 = 76.2 m..
at a mail sorting facility packages slide down a ramp but are stopped part way down the ramp so that they can be
A highway curves to the left with radius of curvature of 44 m and is banked at 29degrees so that cars can take this curve at higher speeds. Consider a car of mass 1387 kg whose tires have a static friction coefficient 0.68 against the pavement.
The period of motion of an object-spring system is 0.249 s when a 40.28 g object is attached to the spring. What is the force constant of the spring?
A cylindrical grain bin 24.0 ft in diameter is filled with corn whose weight density is 45.1 lb/ft^3. How tall can the bin be for the floor
Two small beads with positive charges+4q and+q are fixed atopposite ends of a horizontal insulating rod as shown. A third small charged bead is free to slide along the rod between the fixed charges.
A 30 kg launching machine fires a 250 gram projectile horizontally at 100 m/s. What was the momentum of the machine
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