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Question: A small sphere with a mass of 0.002g and carrying a charge of 5*10^-8C hangs froma thread near a very large, charged conducting sheet. The charge density on the sheet is 2.5*10^-9C/m^2. FInd the angle of the thread.
A pendulum of length 2.0 m is held out to point A
A sphere of mass ofm= 1.40 kg is first placed directly on the plate of an electronic scale. The scale shows 13.73 N as the weight of the object. Calculate the density of the sphere
A 7.00-kg crate slides 3.00 m down a ramp inclined at 55.0º below the horizontal. What is the net work done on the crate
The position of an object connected to a spring varies with time according to the expression x = (5.7 cm) sin(6.8?t). Find the period of this motion
Consider two adjacent fields. One is an irrigated cropped field, the other is a fallow field. Which of the fields will have the highest Bowen ratio
An aluminum wire having a cross-sectional area equal to 3.20X10^-6 m^2 carries a current of 6.50 A. Find the drift speed of the electrons in the wire
a 9 kg bar 1.5 m long is set up to rotate about its center (the dark circle). Each arrow represents a force that is being applied to the bar. FA = 15 N, FB = 28 N, FC = 35 N, & FD = 19 N. Determine the angular acceleration of the bar
Two 0.20-g metal spheres are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostaticrepulsion forces them apart until the angle between the threads is 20 degrees. How much charge..
A bullet of mass 22 g is fired horizontally from a gun with a velocity of 1150 m/s into a wooden block of mass 8.0 kg sitting on a horizontal table
A carbon nanopaeticle contains 7000 carbon atoms. According to the Einstein model of a solid, how many oscillators are in this block
question the intensity 18m from a source of sound is measured to be 10-4wm2.a determine the intensity of the sound in
At what net rate does heat radiate from a 275m^2 black roof on a night when the roof temp is 30.0C and the surrounding temp is 15C. The emissivity of the roof is 0.900
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