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A test tube holder
An appropriate test tube holder can be made by bending strong spring wire made of iron or brass into the shape shown in the diagram. Wire from a coat hanger works very well.
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
what does slope of the tangent drawn on velocity -time graph at any instant of time give?
how psuedo force is valid?
Two cars head out in the similar direction. Car A starts 1.0 min before car B. The position-time graphs for both cars are shown in the accompanying figure. a. How far apa
what is friction? What are the factors affecting for it? Advantages and disadvantages of it
is motion of a ball on a smooth surface an example of uniform velocity? is motion of a ball on a rough surface an example of variable velocity? is a car moving on a straight path
The process of apparent change in frequency (or wavelength) of the light because of relative motion among the source of light and the observer is known as Doppler's effect.
why flashlight suddenly become dim or bright when shaked?
Is it determined by acceleration or velocity? Force or momentum?
how temperature increases w.r.t. voltage and current for same wire
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