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A 2.1 kg block slides along a horizontal surface with a coefficient of kinetic friction μk = 0.31. The block has a speed v = 1.4 m/s when it strikes a massless spring head-on.
Explain why the detachment occurs when the spring reaches its natural length (x = 0).
An organ pipe which is open at both ends resonates at its fundamental frequency. Neglecting any end effects, what wavelength is formed by this pipe in this mode of vibration i
A Decibel meter reads 140 dB for a sound source at 20''c at 60 % relative humidity. It also records sound pressure for 140 dB as 200 pascals what will it read( decibel meter) at 4
I just really don''t get the homework
Q. A rubber ball is dropped to the floor. What force act on the ball to bounce? Does the Earth "bounce" too? Ans. The force of the Earth pushing back on the ball causes
Direction of Acceleration and Velocity Knowing the size of a distance or speed is frequently meaningful for creating comparisons. For example, for some reasons it may be enough
ROCKET PROPULSION: The motion of a rocket is an application of the law of conservation of momentum and Newton's 3rd law of motion. The gases ejected out from the combustion cha
(1) Standing pulse can be longitudinal / transverse. (2) The disturbance confined to a particular part among the starting point and reflecting point of the ray. (3) There is
An open platform elevator is moving down a mine shaft.After the elevator has travelled 25m [from the top of the shaft]a stone is dropped from the top of the shaft .Find time taken
what will happen if gravity becomes zero?is it possible in earth?
Q. The block of mass M descend with acceleration a and mass of string is m. find tension in string? Ans: The tension in the string will not be same at all points as the string h
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