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Perhaps to confuse a predator, some tropical beetles arecolored by optical interference that is due to scales whosealignment forms a diffraction grating (which scatters light insteadof transmiting it). When the incident light rays are perpendicularto the grating, the angle between the first-order maxima (onopposite sides of the zeroth-order maximum) is 33° in light with a wavelength of 550 nm. What is the grating spacing of the beetle?
µm
At the end of an amusement park ride, it is desirable to bring a gon- dola to a stop without having the acceleration exceed 2 g. what is the maximum allowed braking force
A circular coil made up of 10 windings of wire has a circumfrence of 2 m. The coil is perpendicular to a magnetic field of strength 10 T. what is the change in magnetic flux through the coil
What is the force acting on the board because of the left support when a diver of mass 63.20 kg stands at the end of the board over the water? Suppose that these forces are vertical.
A 3.0-kg particle has a position vector given by r=(2.0t^2i+3.0j) where r is in meters and t is in seconds. What is the angular momentum of the particle
The Earth's radius is 6370 km . There is a downward-pointing electric field in the atmosphere above the Earth's surface, What is the flux of the electric field out of the Earth, What is the charge on the Earth
A 5.00 g object moving to the right at 20 cm/s makes an elastic head on collision with a 10.0 g object that is initially at rest. Find (a) velocity of each object after the collision and (b) the fraction of the initial kinetic energy transferred to t..
A microscope has an objective that has a focal length equal to 6.6 mm. what is the laternal magnification of the objective
Suddenly this mass is struck by another 2.00-kg object traveling along the x-axis at 3.00 m/s, and the two masses stick together.
A spherical mirror is to be used to form an image, five times as tall as an object, on a screen positioned 4.2 m from the mirror. Describe the type of mirror required
An electron with an initial velocity v0 = 2.50×105 m/s enters a region 1.0 cm long, how long does the electron take to pass the accelerating region
You want to throw a pebble at a window located 9.6 m above the ground, making sure that the pebble hits the lowest part of the window with a strictly horizontal velocity. What is the velocity with which the pebble hits the window
A heart defibrillator passes 10.5 A through a patient's torso for 5.00 ms in an attempt to restore normal beating, How much charge passed
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