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Starship "Alpha" is traveling at 0.8c (α = 5/3) with respect to the identical starship "Beta." Each starship has rest length 10,000 m. The ship's engineer aboard the "Beta" measures the length of the "Alpha" as it passes by his window. What result should he get?
A light bulb emits light uniformly in all directions. The averageemitted power is 150.0 W. At a distance of 4 m from the bulb,determine (a) the average intensity of the light,(b) the rms value of the electric field, and(c) the peak value of the elect..
The far point of a nearsighted person is 5.6 meter from her eyes, and she wears contacts that enable her to see distant objects clearly. Obtain how high is the image formed by the contacts
A wire carries a current of 6.0 A in a direction that makes an angle of 32.0°, Find the magnetic force on a 7.00 m length of the wire
What is wavelength of the photon emitted when an electron in a singly ionized helium atom which is in the initial state n1=8 jumps to final state nf=4
A car race takes place on a long straight track, at the beginning of the race the car accelerates from rest to some top speed with a (constant) acceleration of 1.13 m/s2, What was the top speed reached by the car
A spring with spring constant 11.9N/m hangs from the ceiling. A ball is suspended from the spring and allowed to come to rest. It is then pulled down 11.0 cm and released. The ball makes 38.0 oscillations in 19.0 seconds.
A charge q= +5.80 x 10^-6 is located at the center of a regular tetrahedron (a four sided surface). find the electric flux through one face of the tetrahedron
A small sphere that carries a chargeq is whirled in a circle at the end of an insulatingstring. The angular frequency of rotationis ω. What average current does this rotatingcharge represent?
when jumping straight down you can be seriously injured if you land stiff-legged. one way to avoid injury is to bend
A tower outside the Houses of Parliament in London has a famousclock commonly referred to as Big Ben, the name of its 13-tonchiming bell. What is the torque on the clock mechanism due to the weight of one of the four hourhands when the clock strikes..
Rusting of an iron nail is an example of a change of phase, true or false? This seems like a tricky question, because it is a chemical change-but would that be considered a change of phase?
question a block of unknown mass is attached to a spring of spring constant 5.6 nm and undergoes simple harmonic motion
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