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A human hair is placed between the ends of two microscope slides, forming a thin wedge of air between the slides, as indicated in the figure below. An expanded He-Ne laser beam of wavelength 633 nm is incident on the slides from above. An observer viewing the slides from above sees a series of thin, straight, alternating light and dark fringes, with 113 bright fringes spread over the 4.55 cm length of the slides. Find the diameter of the hair.
question a solid ball encounters a 0.760 m vertical rise on the way back to the ball rack. ignore frictional losses and
A boy drops a stone vertically down from the margin of a 24-m cliff. After how many seconds will the two stones pass each other
Carbon dioxide gas is heated as it flows steadily through a 2.5-cm-diameter pipe. At the inlet, the pressure is 2 bar, determine the rate of heat transfer to the carbon dioxide, in kW
An extreme skier, starting from rest, coasts down a mountain slope that makes an angle of 25.0o with the horizontal. How fast is she going just before she lands
A line of charge with uniform density of 28.0 nC/m lies along the line y = -15.0 cm, between the points with coordinates x = 0 and x = 32.0 cm
In a certain binary-star system, each star has the same mass which is 9.6 times of that of the Sun, and they revolve about their center of mass. What is their period of revolution in years
Two horizontal curves on a bobsled run at the similar angle, but one has twice the radius of the other. The safe speed (no friction needed to stay on the run) for the smaller radius to curve is v. What is the safe speed on the larger radius curve.
question consider two oppositely charged parallel metal plates. the plates are square with sides l and carry charges q
An electrical engineer constructs a cylindrical solenoid of area 6 cm2 and length 20 cm from 160 m of thin wire. How much energy can the inductor store
A 1320-kg racecar is driving around a circular track of radius 161 m. What is the magnitude of the net force acting on the vehicle
The cross-sectional area of the aorta is initially 4 cm2. Though a single capillary is very small, the total cross-sectional area of all the capillaries fed by the aorta is 6000 cm2, over half a square meter
The rotational velocity of a merry-go-round increases at a constant rate from 0.6 rad/sec to 1.8 rad/s in a time of 4 s. find the rotational acceleration of the merry-go-round
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