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a block is released at the top of a plane inclined at 30o with the horizontal the block begins to slide and travels 1 m
in the produce section of a supermarket five pears are placed on a spring scale the placement of the pears stretches
you are inside an enclosed truck with no windows and you wish to keep track of the trucks motion to do this you hang a
an engine with an output of 2670 w has an efficiency of 390 it works at 900 cycless how much work is done in each
a sparrows maximum air speed speed relative to the air around it is 20 msec she wants to fly to her nest which is due
on the planet gurfinidia in the distant ford galaxy a rock dropped from the top of a 327 m high building hits the
at a given point above the surface of earth the gravitational acceleration is equal to 78 ms2 at what speed could a
you may have observed that water waves advancing toward the shore have their wavefornts almost always parallel to the
as people sing in church the sound level everywhere inside is 107 db no sound is transmitted through the massive walls
a 5000kg satellite orbits earth at a distance of 35000km above the surface of the earth calculate its velocity and its
if a car wheels are locked and the resulting skid marks are 150m long how fast was the car going when the wheel became
in a fast-pitch softball game the pitcher is impressive to watch as she delivers a pitch by rapidly whirling her arm
an electric fan is turned off and its angular velocity decreases uniformly from 400 revmin to 220 revmin in 500 s a
the highest part of a road over the top of a hill follows an arc of a vertical circle of radius 500 m with what minimum
stan and ollie are standing next to a train track stan puts his ear to the steel track to hear the train coming he
a cord of length 13 m is fixed at both ends its mass per unit length is 11 gm and the tension is 11 n a what is the
a golf ball of mass 0050 kg is at rest on the tee and has a velocity of 102 ms immediately after being struck if the
when responding to sound the human eardrum vibrates about its equilibrium position suppose an eardrum is vibrating with
a hunter is standing on flat ground between two vertical cliffs that are directly opposite one another he is closer to
when the power is turned off on a turntable spinning at 900 rpm you find that it takes 118 revolutions for it to stop
magnus has reached the finals of a strength competition in the first round he has to pull a city bus as far as he can
the outfielder throws a baseball with an initial speed of 10 ms an infielder catches the ball at the level 1 m lower
a comet orbits the sun with a period of 9681 years the comets distance of closest approach to the sun perihelion is
an asteroid is discovered to have a tiny moon that orbits it in a circular path at a distance of 115 km and with a