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1) A single slit is .5mm wide and is illuminated with monochromatic light of a wavelength 400 nm. A screen is 5 meters from the slit.
a) Find the first and second bright spot above the central bright spot.
b) How bright are these spots compared to the central bright spot.
The moon orbits the earth at a distance of 3.85 x 10^8 m. Assume that this distance is between the centers of the earth and the moon and that the mass of the earth is 5.98 x 10^24 kg. Find the period (in days) for the moon’s motion around the earth.
A 2070 kg railroad flatcar, which can move with negligible friction, is motionless next to a platform. What is the speed of the flatcar if he then stands on it
A ball with mass 450 grams hangs from a spring that is hanging from a ceiling. The spring's stiffness is 110 Newton’s/meter and its relaxed length hanging from the ceiling by the ball is 12.7 cm. What would be the relaxed length of the spring if the ..
A sled is dragged along a horizontal path at a constant speed of v = 1.52 m/s by a rope that is inclined at an angle of ? = 30.3° with respect to the horizontal
A cardboard milk container has two holes, one above the other,punched in its side. find the level of the milk at that instant
A beam of light strikes the plane surface of borate flint glass at an angle of incidence of 57°. How much smaller is the angle of refraction for violet light of wavelength 400 nm than that for red light of wavelength 700 nm
An 1840 kg car is driving at a constant speed of 12m across a bridge shaped in an arc with a rdius of 22m. Calculate the magnitude of the normal force the bridge exerts on the car
What is the magnitude of the electric field between the plates?
A molecule of DNA (deoxyribonucleic acid) is 2.06 µm long. The ends of the molecule become singly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.93% upon becoming charged. Decide the effe..
Three 10.53-g Styrofoam balls of radius 2 cm are coated with carbon black to make them conducting, Determine the absolute value of q
You are standing on the ground beside a railroad track. Two posts separated from each other by a distance of 125 m are fastened to the ground. What is the length of the train according to an observer traveling in the train
An out of control truck with a mass of 7500 kilogram is traveling at 13 meter per second (about 30 miles per hour) when it locks up its brakes and starts descending an icy hill with a 5o incline. Find how far the truck will slide down the slope wi..
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