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The drawing shows two long, straight wires that are suspended from a ceiling. The mass per unit length of each wire is 0.051kg/m. Each of the four strings suspending the wires has a length of 1.2m. When the wires carry identical currents in opposite directions, the angle among the strings holding the two wires is 15°. What is the current in all wire?
One hectare is defined as 10^4 m^2. (Meaning 10 to the 4th power etc) One acre is 4x10^4 ft^2. How many acres are in one hectare
A spherical balloon has a radius of 12.0 m, and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 1000 kg
While Voyager 2 sent back pictures of Neptune during its historic flyby of that planet in 1989, the spacecraft's radio signals travelled for 4 hours at the speed of light to reach Earth. How far away was the spacecraft.
A concave shaving mirror has a radius of curvature of +39.8cm. It is positioned so that the (upright) image of a man's face is 3.48 times the size of the face. How far is the mirror from the face?
A simple pendulum is made from a 0.60-m-long string and a small ball attached to its free end. how much time elapses before it attains its greatest speed
imagine a truck with a mass of 23 metric tons t 1 t1000 kg barrelling down a highway at a speed of 55 mih. what is the
A hockey player hits a punk so that it comes to rest in 9s after sliding 30 m on the ice. Determine (a) the initial velocity of the punk, (b) the coefficient of friction between the punk and the ice.
question1babe didrikson holds the world record for the longest baseball throw 296 ft by a woman. for the next questions
If a hydrogen atom in its ground state is illuminated with em radiation of wavelength 97.44 nm, what is the highest state the electron can be promoted
An X-ray photon with a wavelength of 0.260 nm scatters from a free electron at rest. Find the final momentum of the photon
How do you calculate the magnetic field strength in the center of Helmholtz coils
the froghopper philaenus spumarius is supposedly the best jumper in the animal kingdom. to start a jump this insect can
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