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Question: LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. A typical LASIK laser emits a 1.0-mm-diameter laser beam with a wavelength of 193 nm. Each laser pulse lasts 15 ns and contains 1.9mJ of light energy. A) What is the power of one laser pulse? B) During the very brief time of the pulse, what is the intensity of the light wave? Express your answer to two significant figures and include the appropriate units for both questions.
your friend rides a bicycle along the edge of a river starting at point a and riding east at a constant speed of vbike.
A total of 34 bright and 34 dark Newton's rings (not counting the dark spot at the center) are observed as 550 -nm light falls normally on a planoconvex lens resting on a flat glass surface. How much broad is the center than the edges.
A closed system is observed to have 68objects in it. Initially, the total energy of the system is7944 J. After 1.1h have passed, how much total energy will the system contain?
a golf ball rolls off a horizontal cliff with an initial speed of 14.8 ms. the ball falls a vertical distance of 12.5 m
In Figure (a), two circular loops with different currents but the same radius of 10. cm, are centered on a y axis. They are initially separated by distance L = 7.5 cm, with loop 2 positioned at the origin of the axis
Electromagnetic waves, with frequencies ranging from 4.00 x 10^14 Hz to 9.00 x 10^16 Hz, Find the maximum kinetic energy of electrons ejected from this surface
a beam of polarized light strikes two polarizing sheets. the characteristic directions of the second is 900 with
A uniform rod of mass 2.85Ã-10-2kg and length 0.370m rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod.
A rope pulls on the lower block in the figure with a tension force of 20 N. What is the acceleration of the 2.0 kg block
A 297-kg motorcycle is accelerating up along a ramp that is inclined 30.6° above the horizontal. Find the magnitude of the motorcycle's acceleration
question a converging lens f 14.7 cm is located 24.1 cm to the left of a diverging lens f -6.64 cm. a postage stamp
A string of holiday lights has ten bulbs by equal resistances connected in series. When the string of lights is connected to a 120-V outlet, the current during the bulbs is 0.06 A.
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