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The problem is determining the index of refraction. A microscope focuses on a tiny scratch in the upper surface of a plate of glass,then the barrel position is recorded. Next the microscope is lowered by 1.87mm and a focused image of the scratch is seen again. (This is from a reflection off the bottom of the plate) The plate thickness is 1.5mm. What is the index of refraction of the plate of glass? I know the answer is 1.6 but I have tried many differentways.
Two rods, one made of brass and the other made of copper, are joined end to end. The length of the brass section is 0.290m and the length of the copper section is 0.710m . Each segment has cross-sectional area 6.30×10?3m^2 .
A block of mass mb is attached to one end of a spring and is sliding on a horizontal frictionless surface. the other end of the spring is fixed. find the new period and new amplitude of the motion
A vertical-axis capstan drum 60 cm in diameter was used to pull inthe anchor chain of a whaler a century ago. Six horizontal arms 1.2m long protruded from the top of the drum, and a man on each armexerted a force of 300 N on it. The efficiency of ..
It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time. Find out the angular speed of the wheel at t = 2.30 s.
a particle of mass 6kg traveling with speed 4m/s in the direction 30 degrees S of W on a horizontal plane suddenly shoots one-third its mass in the north direction with speed 5.5 m/s
A 500 turn solenoid with a length of 20 cm and a radius of 3.0 cm carries a current of 3.0 A. A second coil of four turns is wrapped tightly about this solenoid so that it can be considered to have the same radius as the solenoid. Find when the curre..
A 0.30 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.20 kg puck that is initially moving along the x axis with a velocity of 1.8 m/s. Find the fraction of kinetic energy lost in the collision
You have a parallel-plate ideal capacitor with a capacitance of 23mF that you connect to a 4V battery until it is fully charged. What is the diameter of the solenoid
At a recent rock concert, a dB meter registered 110 dB when placed 2.00 m in front of a loudspeaker on the stage. What was the power output of the speaker
An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 11.0 m/s in 4.40 s. find the magnitude and direction of the bird's acceleration
Two loudspeakers 5.0 m apart are playing the same frequency. If you stand 11.0 m in front of the plane of the speakers,centered between them, you hear a sound of maximum intensity
In a single-slit experiment, light of wavelength 500 nm is used to produce a diffraction pattern on a screen 4.0 m away. what is the slit width
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