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The critical angle for total internal reflection at a benzene-air interface is 41.8 degree. A ray traveling in air has an angle of incidence of 28 degree at the interface. Find what angle does the refracted ray in the liquid make with the normal?
An air puck of mass 0.20 kg is tied to a string and allowed to revolve in a circle of radius 0.9 m on a frictionless horizontal table. What is the speed of the puck
Armadillos have an unfortunate defense mechanism that gets them slaughtered in large numbers on Texas roads. determine how fast must he be moving vertically when his feet just lift off the pavement
q1. a ball is dropped from rest at a height of 80 m above the ground.a. what is its speed as it hits the ground?b. how
A curve of radius 60m is banked for a design speed of 100km/h.If the coefficient of static friction is .30 (wet pavement), at what range of speeds can a car safelymake the curve.
Charges of 4.0 uC and -6.0uC are placed at two corners of an equilateral triangle with sides of 0.10m. At the third corner, what is the electric field created by these two charges
A heavy flywheel rotating on itscentral axis is slowing down because of friction in its bearings. find its rotational speed at the end of the second minute
consider the earth and a cloud layer 800 m above the planet to be the plates of a parallel-plate capacitor.a if the
the inside and outside temperature of a carnot refrigerator are 10*C and 25*C, respectively. find the work required in each cycle
A 50kg driver sits stopped at a traffic light. Another car rear-ends her and causes her to accelerate at 16m/s^2. It all occurs in 0.25s. What is the impulse given to the driver
An entertainer, when performing a bubble trick, forms one bubble inside another. The surface tension of the bubble liquid is ?=0.04 N m-1. calculate the gauge pressure in the inner bubble
A woman walks 290 m in the direction 37° east of north, then 177 m directly east. Find (a) the magnitude and (b) the angle (from due east) of her final displacement from the starting point. (c) Find the distance she walks.
the metlife blimp snoopy one is moving at a constant velocity of 18.93 ms. its velocity vector makes an angle of 15
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