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A large metal sheet of thickness l is placed between, and parallel to, the plates of the parallel-plate capacitor of the figure.( It does not touch the plates, and extends beyond their edges. What is now the net capacitance in terms of A, d, and l? If l = 0.45 d what factor does the capacitance change when the sheet is inserted?
A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0g steel wire. What is the mass of the sculpture
A helium-neon laser (? = 632.8 nm) is used to calibrate a diffraction grating. If the first-order maximum occurs at 21.5°, what is the spacing between adjacent grooves in the grating? (In this problem, assume that the light is incident normally on th..
An iceboat is traveling in a circle on the ice. Halfway around the circle, the sail and the steering mechanism fall off the boat. Which will most likely occur as a result?
A 4.80-m clothesline is hung between two poles that are 4.76 m apart
In a double slit experiment there are two plane monochromatic waves incident on the slits. One wavelength is red with lamba= 600.0 nm, Calculate the linear separation of the red fringes
If material increases its length by 4.2% when its temperature is raised 40 degrees C, then what is its coefficient of linear expansion
A 31.0-kg child on a 1.00-m-long swing is released from rest when the ropes of the swing make an angle of 30.0° with the vertical. Neglecting friction, find the child's speed at the lowest position.
q1. a 2.75-mm-tall object is 8.0 cm to the left of a convex lens of 5.7 cm focal length. find the image position and
When a potential difference of 168 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 23.0 nC/cm2. What is the spacing between the plates
A freight train has a mass of 1.3 * 10^7 kg. how long doesit take to increase the speed of the train from rest to 90km/h
What is the gravitational force between two 20 kg iron balls separated by a distance of 0.5m? The gravitational constant is G = 6.67×10^-11 N-m^2/kg^2
Two moles of an ideal monoatomic gas undergo a cyclic process starting from state A at a vol. of 1L and a pressure of 2 atm. Find the total work done by the gas in one cycle
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