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Two long, parallel wires are separated by a distance of 0.20 m and carry equal currents. There is a force of attraction per meter of 6.5 X 10-5 N/m between them. Find the magnitude of the currents in A and deterimne if they are parallel or anti parallel.
Two point charges lie along the y axis. A charge of q1 = -12.0 µC is at y = 7.0 m, find the point at which the total electric field is zero
A 200 g block is pressed against a spring of force constant 1.4 k N/m until the block compresses the spring 10 cm, the spring rests at the bottom of a ramp inclined at 60 degrees to the horizontal.
The interferometer mirror of a FTIR travels ± 1 cm. How many centimetres is the maximum retardation? What is the approximate resolution (cm^-1) of the instrument?
Working for a small gold mining company, you stumble across an abandoned mine shaft that, because of decaying wood shoring, looks too dangerous to explore in person. Estimate the depth of the shaft
a block with a weight of 3.2 n is at rest on a horizontal surface. a 1.1 n upward force is applied to the block by
A person pushes a crate rightward along a rough horizontal surface by pushing downward at 30 degrees below the horizontal with a force of magnitude F = 50.0 (N). What is the horizontal acceleration ax of the crate
you are traveling on a plane. the velocity of the plane with respect to the air is 140 ms due east. the velocity of the
a) What is the total charge of the neptunium nucleus (The neutral neptunium atom has 93 electrons.) = 1.49×10-17 C b) What is the magnitude of its electric field at a distance of 5.29×10-10 m from the nucleus
A symmetric bi-covex lens has radii of curvature R and athickness of d. Find its focal length using matrix methods
At the low point in its swing, a pendulum bob with a mass of 1 kg has a velocity of 8 m/s. What is its kinetic energy at the low point
a calorimeter of negligible mass contains 1100 g of water at 303 k and 41 g of ice at 273 k. find the final temperature
A bird stands on a dc electric transmission line carrying 2800 A. find the potential difference between the bird's feet
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