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A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 607 nm. Determine the angle that locates the first dark fringe when the width of the slit is (a) 4.1 x 10-4 m and (b) 4.1 x 10-6 m.
A 3.0cm tall object is 50cm in front of a convex mirror that has a -20 cm focal length. Calculate the image position in cm behind the mirror
A sound pulse has a power of 948.5 watts. find the intensity of the sound at the time of observation
A projectile is fired in such a way that its horizontal range is equal to 4.5 times its maximum height. What is the angle of projection?
a runner of the 100m dash aims to achieve a 10sec time. he accelerates to his final cruising speed in the first 10m. what is his final cruising speed
A telescope has an objective with a refractive power of 1.00 diopters and an eyepiece with a refractive power of 300 diopters
At a temperature of 0° C, the mass and volume of a fluid are 798 kg and 1.25 m3. The coefficient of volume expansion is 1.25 10-3(° C)?1. What is the density of the fluid when the temperature has risen to 21.0° C
Derive an expression for the surface temperature of the Sun, in terms only of its solid angle, its flux per unit wavelength f(lambda1) at Earth at one wavelength (lambda 1) and its fundamental constants
A bullet is fired into a large stationary absorber and comes to rest. Temperature measurements of the absorber show that the bullet lost 2060J of kinetic energy, What is the mass of the bullet
An X-ray photon scatters from a free electron at rest at an angle of 175 degree relative to incident direction. Find the kinetic energy of the recoil electron
A 25.0g arrow is shot through a 7.8 cm apple. If the arrow enters the apple at 38.8 m/s and emerges with a speed of 30.10m/s in the same direction, what is the magnitude of force with which the apple has resisted the arrow.
To determine the specific heat of an object, a student heats it to 100 in boiling water. She then places the 68.5 object in a 196 aluminum calorimeter containing 135 of water. The aluminum and water are initially at a temperature of 19.5, and are ..
A painter (m=70 kg) is standing a distance of 0.6 m from the top of a ladder (mass 40 kg and length 2.5 m). Find the conditions for static equilibrium of the ladder with the painter on top
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