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A long wire carrying a 5.5 A current perpendicular to the xy-plane intersects the x-axis at x=-2.0cm. A second, parallel wire carrying a 3.0 A current intersects the x-axis at x=+2.0cm.
At what point on the x-axis is the magnetic field zero if the two currents are in the same direction?
A frictionless plane is 10.0 m long and inclined at 34.0°. A sled starts at the bottom with an initial speed of 5.90 m/s up the incline. find the distance that the first sled traveled up the incline
To estimate the size of the moon, a person holds a round pencil of diameter 0.70 cm. When the pencil is 77 cm in front of his eye, What is the angle subtended by the moon
Needing help, secretary of the United States Department of Agriculture asked your teacher, "If a chicken and a half can lay an egg and a half in a day and a half, how many days will it takes three chickens to lay twenty eggs".
Four point charges, q, are fixed to the four corners of a square that is 11.2 cm on a side. An electron is suspended above a point at which its weight is balanced by the electrostatic force due to the four point charges, at a distance of 11 nm abo..
A long straight wire carries a current of 88.0 A. An electron, traveling at 6.5x10^7 m/s, is 1.5 cm from the wire. What force (magnitude and direction) acts on the electron if the electron's velocity is directed toward the wire?
A ball of mass m moving with velocity v_i_vec strikes a vertical wall. What is the final angle theta_f that the ball's velocity vector makes with the negative y axis
An 70 box of oranges is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 each second. The push force has a horizontal component of 20 and a vertical component of 25 downward. Calculate the coefficient of k..
A 4.60 kg block of ice at 0°C is added to an insulated container partially filled with 11.6 kg of water at 15.0°C. Find the mass of the ice that was melted
Taipei 101 (a 101-story building in Taiwan) is sited in an area that is prone to earthquakes and typhoons, What is the period of oscillation of the building
Suppose a crate of mass 8.4 kg is placed on the plank in the figure below at a distance x = 8.3 m from the left end. find the forces exerted by the two supports on the plank
what are the magnitude and direction of the x and y components of the electric field at the origin if there is a 2.0nc
Calculate the shortest wavelength that will be emitted from an X-ray tube in which the electron beam has been accelerated through a potential difference of 30 kV
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