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Atoms can be ionized by thermal collisions at very high temperatures. One such ion is Ne9+, a neon atom with only a single electron.
What is the wavelength of the first line in this ion's Lyman series?
As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. What will be the acceleration of the bags
A 0.534-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
question1a guitar string is 90 long and has the mass of 3.4. the distance from a bridge to the support post is and
A steam locomotive uses the back-and-forth motion of a drive rod to turn its 1.55 m diameter wheel. Each compete oscillation of the rod corresponds to one wheel revolution.What's the rod's oscillation frequency when the train is moving at 30 m/s ?
Find the average force on the driver if the deceleration is accomplished gradually by the application of brakes over a 10.1 s interval
A lab centrifuge with radius 11cm turns at 77 rev/s. What should be its angular acceleration for a point at the 11cm radius to have tangential acceleration that is 1% of its centripetal acceleration?
A 10g lead bullet at 23 degrees celsius slams into a stone wall. Assuming no loss of energy to the environment, how fast must the bullet be traveling
Seismographs measure the arrival times of earthquakes with a precision of 0.100 s.7 To get the distance between to the epicenter of the quake, they compare the arrival times of S- and P-waves, which travel at different speeds.
Two round concentric metal wires lie on a tabletop, one inside the other. The inner wire has a diameter of 18.0cm and carries a clockwise current of 14.0 A, as viewed from above, and the outer wire has a diameter of 38.0 cm.
A converging lens forms an image of an 8.00mm tall real object. The image is 12.5cm to the left of the lens, 3.30cm tall, and erect. What is the focal length of the lens
On a frictionless, horizontal air table, puck A (with mass 0.250 kg) is moving toward puck B (with mass 0.370 kg), which is initially at rest. What was the speed of puck A before the collision
The magnetic field of a plane-polarized electromagnetic wave is given by B=1.2*10^-6 Sin[2pi (z/240 – (t*10^7)/8)] in SI units . The field vector is B_ = B(z,t)[(i^+J^)/ 2^(1/2)]. Find the average power per square meter carried by the EM wave. Writ..
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