Mary weighs 505 n she walks down a flight of stairs to a
Mary weighs 505 N. She walks down a flight of stairs to a level 5.50 m below her starting point. What is the change in Mary’s potential energy?
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a 100-m long string of mass 200 g is clamped at both ends the tension in the string is 200 n the string is pluck so
the equation of a transverse wave traveling in a string is given by ya sink xt the tension in the string is 200 n a 2
what will be the speed if the string is replaced by one made of the same material and under the same tension however
an object gets a variable acceleration in ms2 that changes with time according to the equation at 50-14t 0 lt t lt 80s1
mary weighs 505 n she walks down a flight of stairs to a level 550 m below her starting point what is the change in
a spherical source radiates sound uniformly in all directions at a distance of 12 m the sound intensity level is 10-4
when a pin of mass 0140 g is dropped from a height of 050 m 005 of its energy is converted into a sound pulse by
the linear acceleration of a particle is given with at 700 t3 where the acceleration is in ms2 and the time is in
a sound source is moving at 85 ms toward a stationary listener that is standing in still air in the reference frame of
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