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A horizontal wire of length 3.0 m carries a curruent of 6 A and isoriented so that the direction is 50 degrees S of W. The earthsmagnetic field is due north at this point and has a strengthof 0.14 * 10^-4 T. What is the size of the force on thewire?
Given: The speed of sound in air is 343m/s. The length of a hollow pipe is 632 cm. The air column in the pipe is vibrating and has four nodes. Determine the frequency of the sound wave in the hollow pipe.
Albert is pulling a 25.0 kg block up a hill which has an angle of ï?± = 15.50, calculate the work done by each force listed, and thus find the total work done on the block
When light of two different wavelengths passes through two parallel slits, the 11th-order maximum of one wavelength and the 10th-order maximum of the other wavelength occur at the same location
Assume that, when Hiawatha aims vertically, his arrow reaches a maximum height of 20 m. Use this fact to find the initial speed u with which Hiawatha can launch the arrow vertically.
An electron of kinetic energy 35 keV moves in a circular orbit perpendicular to a magnetic field of 0.390 T. Find the radius of the orbit
q1. in brief explain the changes that the sun will go through after it exhausts its core hydrogen. be sure to describe
What is the wavelength of emitted photon of the previous question if k = 10eV/ °A2, where °A denotes Angstrom and eV: electron volt. Is the emitted photon in visible spectrum of a human eye.
astronauts use a centrifuge to simulate the acceleration of a rocket launch. the centrifuge take 20.0 seconds to reach top speed, what is the astronauts tangential acceleration during the first 20.0 s
One mole of an ideal gas initially has a temperature of 52.5°C. If the pressure is held constant and the volume is doubled, what will be the final temperature of the gas
A person wearing a safety belt can withstand an acceleration of -3.0 x 10^2 m/s2. How thick must barriers be to safely stop a car that hits a barrier at 112 km/h.
Two cars traveling in opposite directions collide head on and are brought to rest. estimate the change in entropy of the universe
When a potential difference of 12 V is applied to a wire 5.6 m long and 0.28 mm in diameter the result is an electric current of 1.2 , What is the resistivity of the wire
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