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Total height of the gymnast just before falling back down is=(2+.3)=2.3m
Energy gained at that point
= m*g*h(m=mass, g=gravitational force, h=height)
=55*9.8*2.3=1239.7 J
And the work done by the average force(let the force be F) that is exerted by the mat, moving through a distance of 0.3m=F*0.3 m
So, F*0.3 =1239.7 J
The magnifying power of an astronomical telescope in the normal adjustment position is 100. The distance among the objective and the eye-piece is 101 cm. Measure the focal lengths
The Maximum displacement of a vibrating particle of medium from its mean position is known as amplitude.
moving coil galvanometer
A particle moving in a straight line with constant accelaration is having initial velocity of 10 m/s. After some time, the velocity becomes 30 m/s. Find the velocity of particle at
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The frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this wave? Ans: The velocity of given wave is 1250 meters/second.
FUNCTIONS OF NICOL PRISM
Time constant in Inductors: It is impossible to decide exactly when the maximum point is reached on an exponential curve, or when the curve has fallen to exactly zero. To ena
is terrestrial telescope a concave or convex?
A standing wave is described by the wave function where x and y are in meters and t is in seconds. (a) Prepare graphs showing y as a function of x for five instants: t = 0, 5 ms,
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