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A skier traveling 11.0 m/s reaches the foot of a steady upward 18.0° incline and glides 13.2 m up along this slope before coming to rest. What was the average coefficient of friction?
LASIK is a corrective surgical procedure intended to reduce a person's dependency on glasses or contact lenses by actually modifying the shape of the cornea, What is the average intensity during each pulse
A long horizontal wire carries a current of 48 {rm A}. A second wire, made of 2.6 mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15 {rm cm} below. Examine the magnitude of the current in the lower wire.
A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes time 0.420s to pass this window, which is of height 1.92 m. How far is the top of the window below the windowsill from which the flowerpot ..
If we observe a star's spectrum and find that the peak power occurs at the border between red and infrared light, what is the approximate surface temperature of the star
Suppose that a disk rotates through five revolutions in 4 seconds. What is the angular rotational velocity
The driver of a 1740 car traveling on a horizontal road at 110 suddenly applies the brakes. How many meters does it travel before stopping under these conditions
A person with bifocal vision has a prescription of -1.75D/+1.50D, which represents the refractive power of the lenses to correct myopia and presbyopia, respectively. What is the focal length of each lens
A flat sheet of paper of area 0.260{\rm m^{2}} is oriented so that the normal to the sheet is at an angle of 54^\circ to a uniform electric field of magnitude 18{\rm N/C}. Find the magnitude of the electric flux through the sheet
A 0.15 kg ball hits a wall with a velocity of (4.00 m/s) + (6.50 m/s) + (5.00 m/s) . It rebounds from the wall with a velocity of (2.00 m/s) + (3.50 m/s) + (-3.20 m/s). What is the change in the ball's momentum
Mercury is poured into a U-tube as shown in Figure (a). The left arm of the tube has cross-sectional area A1 of 11.0 cm2, and the right arm has a cross-sectional area A2 of 4.60 cm2.
A destroyer sends a sonar pulse out to detect a submarine directly below the ship in the ocean. how deep is the submarine
An object is undergoing SHM with a maximum speed of 8.61 m/s and the maximum acceleration of 1.68 m/s2. What is the period of this motion
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