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A grating gives no third-order spectrum for any part of the visible spectrum (700 nm – 400 nm).
What is the least number of lines per centimetre for this grating?
Two loudspeaker, 4.0 m apart and facing each other, play identical sounds of the same frequency. You stand halfway between them, where there is a max. of sound intensity. moving from this point toward one of the speakers, you encounter a min. of s..
you hear a sonic boom of a high speed jet plane exactly 2.90 s after it passes directly overhead in level flight. At the time you hear the boom, how fast is the plane traveling
A string is attached to an overhead beam. If you put a mass of 170 gram on it, and it proceeds to stretch a distance of 7 centimeter, Find what is the magnitude of the downward acceleration
q1. a 4.00-kg model rocket is launched expelling 54.9 g of burned fuel from its exhaust at a speed of 690 ms. what is
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.6 m/s. Two seconds later the bicyclist hops on his bike and accelerates at 2.2 m/s2 until he catches his friend.
The potential energy stored in the compressed spring of a dart gun, with a spring constant of 60.00 N/m, is 1.260 J. Determine by how much is the spring is compressed
The position of a particle moving along the x axis depends on the time according to x=ct^2-bt^3 where x is in meters, what distance does the particle move and what is its displacement
A crate with mass 35.5 initially at rest on a warehouse floor is acted on by a net horizontal force of 120. What acceleration is produced.
1 a conductor of rad r length e and resistivity p has resistance r. what is the new resistance if it is stretched to 4
A thick cylindrical shell of inner radius a= 5 cm and outer radius b= 10 cm and has a net charge ZERO. Consider 1m length of the cylinder and find the inner and the outer surface charge densities
an inductor carries a current of 2.5 A, and the magnetic energy stored in the inductor is .0035 J. What is the inductance
A 600g model rocket is on a cart that is rolling to the right at a speed of 4.5m/s. At what horizontal distance left of the loop should you launch
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