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A film of MgF2 (n = 1.38) having thickness 1.68 10-5 cm is used to coat a camera lens.
(a) What are the three longest wavelengths that are intensified in the reflected light?
A 10.0-g wad of sticky clay is hurled horizontally at a 110-g wooden block initially at rest on a horizontal surface. what was the speed of the clay immediately before impact
Ceres, the smallest identified dwarf planet in the Solar System, has a radius R = 480 km, Use these numbers to calculate the escape speed from the surface of Ceres
Ceres, the smallest identified dwarf planet in the Solar System, has a radius R = 480 km and an acceleration due to gravity on its surface of magnitude g = 0.27 m/s2. calculate the escape speed from the surface of Ceres
A 40 kg crate is pulled across the ice with a rope. A force of 100 N is applied at an angle of 30 degrees with the horizontal. Neglecting friction.
Potassium iodide has an interplanar spacing of d = 0.296 nm. A monochromatic X-ray beam shows first-order diffraction maximum while the grazing angle is 7.8°. Compute the X-ray wavelength λ .
A biology student rides her bike around a corner of radius 25 meter at a steady speed of 8.2 m/sec. If she is not skidding, what is the magnitude of the force of friction on her bike from the road
A pitcher throws a curveball that reaches the catcher in 0.59 s, What is the angular displacement of the baseball (in radians) as it travels from the pitcher to the catcher
A slide projector has a lens of focal length 150. mm. An image 100. cm × 100. cm is formed of a slide whose dimensions are 50.0 mm × 50.0 mm
A string is attached to the center of a solid cylinder. The cylinder sits on a horizontal surface made of concrete and rolls without slipping. find the magnitude of the static friction acting on the cylinder
A whale sends an undersea signal to its mate and then gets a response 4.5 seconds later. How far away is the whales mate
The telescope at Yerkes Observatory in Wisconsin has an objective whose focal length is 19.4 m. Its eyepiece has a focal length of10.0 cm. What is the angular magnification of the telescope
The inductance of a solenoid with 450 turns and a length of 53 cm is 5.5 mH. What is the cross-sectional area of the solenoid
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