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Alan leaves LA at 8am to drive to SF, 400mls away. he travels at a steady 50mph. Beth leaves LA at 9am and drives a steady 60mph. who gets to SF first? how long does the first to arrive have to wait for the second?
An He+ ion has one electron , just as a hydrogen atom does , but has two protons in its nucleus instead of just one .Find a formula for the wavelength lambda of an emission line for this ion in terms of the magnitude of the hydrogen ground-state ene..
Two positive point charges q1 = 12C and q2 = 48C are a distance 0.25 m apart. Find all the points where the total electric field is zero
A stone is dropped from rest from the roof of a 100-m high building; 2.00 s after that, a second stone is thrown straight down with initial speed v0, and the second stone passes the first stone 21.6 m above ground. What are the speeds of the two s..
A neuron is stimulated with an electric pulse. The action potential is detected at a point 3.20cm down the axon 0.0053s later, What is the speed of the electric pulse along the axon
The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.), Find the filament's temperature
the rst measurements of the properties of highpressure gases e.g. carbon dioxide were made by amagat in france in the
question a 78.3 kg weight-watcher wishes to climb a mountain to work off the equivalent of a large piece of chocolate
A coil of four circular loops of radius 3.0cm carries a current of 5.0A clockwise, What is the magnetic field at the center of the coil
The stopping potential for electrons emittedfrom a surface illuminated by light of wavelength 480 nm is 0.890 V. What is the work function for the surface
riders on a ferris wheel move in a circle with a speed of 4.50. as they go around they experience a centripetal
Young's double-slit experiment is performed with 570 nm light and a distance of 2.00 m between the slits and the screen. The tenth interference minimum is observed 7.64 mm from the central maximum. Settle on the spacing of the slits.
a 40.5-cm-by-40.5-cm checkerboard has a mass of 108.5 g. there are four 23.5-g checkers located on the checkerboard as
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