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the speed of a projectile when it is at its greatest height is root(2/5) times its speed at half the max height . what is the angle of projection ?
A wire of length L is supplied heat to raise its temperature by T. If Y1 is the coefficient of volume expansion of the wire and Y is the Youngs modulus of the wire then the energy density stored in...
Write the dimensions of a and b in the relation P=b-x2/at where P is power, x is distance and t is time.
A particle is projected vertically upwards from point A on the ground. It takes t1 time to reach a point B but it still continues to move up. If it takes further t2 time to reach the ground from po...
The velocity v of a particle depends upon time t, according to the equation v = a + bt +c/(d+t)
write the dimensions of a, b, c, d .
Two resistors of resistances R1=100±3 ohm and R2=200±4 ohm are connected
(a) In series, (b) in parallel. Find the equivalent resistance of the (a) series combination, (b) parallel combination. Use f...
a glass wind screen whose inclination with the vertical can be changed is mounted on a car. the car moves horizontally with a speed of 2m/s. at what angle alpha with the vertical should the wind sc...
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