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Reducing friction by an air stream
Cut out a disc of cardboard about 10 cm in diameter. With a red-hot pin, burn a hole by the centre. Saw a small cotton reel in half and glue the unique end of one half over the middle of the disc. Search a piece of bamboo or some other tube which just fits the hole in the reel. Push this into the neck of a small balloon, using cotton or a rubber band to protected the joint.
Friction by an air stream
investigatory poject class 12
electric field
A rectangular surface (0.14 m x 0.39 m) is oriented in a uniform electric field of 440 N/C. What is the maximum possible electric flux through the surface?
readings of deflection magnetometer
The Trigger In particle physics, a trigger is a system which uses easy criteria to rapidly decide that events within a particle detector to remain while only a small fraction o
For a parallel-plate capacitor with plate area "A" and plate separation "d", the capacitance is proportional to which of the following? a) A divided by d squared b) A tim
why are vector and scalar necessary in our everyday activities?
The following data are measures of triceps skinfold thickness (X1), thigh circumference (X2), and midarm circumference (X3). These three variables are used to predict percentage o
In a particular region there is a uniform current density of 18 A/m 2 in the positive direction. What is the value of fB·ds when that line integral is calculated along the three s
A bubble, located 0.200m beneath the surface of a beer, rises to the top. The air pressure at the top is 1.01 x 10^5pa.Assume that at the density of beer is that same as that fresh
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