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Two long, straight, parallel wires of length 4.5 m carry parallel currents of 3.1 A and 1.1A.
a) If the wires are separated by a distance of3.4 cm, what is the magnitude of the force between the two wires?b) If the currents are in opposite directions(antiparallel), what is the magnitude of the force between the two wires?
A glass lens has a convex surface with radius 25.0 cm and a concave surface with a radius of 50.0 cm. Calculate the focal length of this lens
Two loudspeakers face each other, vibrate in phase, and produceidentical 441-Hz tones. What is the walking speed
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar
A converging lens with a focal length of 6.60cm forms an image of a 3.20mm -tall real object that is to the left of the lens. Where are the object and image located
In a particular region of the earth's atmosphere, Calculate the volume charge density of the atmosphere assuming it to be uniform between 258 and 402 m. Neglect the curvature of the earth
A block of unknown mass is attached to a spring of spring constant 7.9 N/m and undergoes simple harmonic motion with an amplitude of 13.2 cm. Calculate the mass of the block
A fish swimming in a horizontal plane hasvelocity vi =(4.00 i + 4.00 j) m/s at a point in the oceanwhere the position relative to a certain rock isri =(10.0 i + 4.00 j) m. After the fish swimswith constant acceleration for 21.0 s, itsvelocity is v..
a child tosses a stick into a stream. the stick moves downstream at a rate of 1.5 ms. how fast is the stick moving
Ethanol has an index of refraction of 1.36 and Quartz has an index of refraction of 1.54. If light in Ethanol is incident on Quartz at an angle of 44.9 degrees with the normal, what is the angle of refraction?
A projectile is fired at v0 = 407.0 m/s at an angle of ? = 72.0o with respect to the horizontal. How far will the projectile travel in the horizontal direction
Water is being pumped through a horizontal pipe that is 37.8 m long and 14.5 cm in diameter. what gauge pressure must the pump provide to give the same volume flow rate as for the first pipe
If atmospheric pressure is 29.5 feet of water, what is the pressure in bars at the bottom of a 3 meter deep swimming pool
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