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a 43 power refracting telescope wherepower is the angular magnification has an eyepiece with a focallength of 42 cm how
a barrel contains a 0130 rm m layer of oil of density620 rmrm kgrm mrm3floating on water that is 0290 rm m deep what is
imagine you are sitting in a room full of oxygen molecules at 300k if the room has a volume of 12105 m3 what is the
consider a balloon containing hydrogenmolecules at room temperature 20degc and atmospheric pressureif the balloon has a
a potters wheel moves from rest to an angular speed of 20 revs find its angular acceleration in radians per second per
a neodymium-glass laser emits short pulses of high-intensityelectromagnetic waves the electric field of such a wave has
a cardinal richmondena cardinalis of mass 370times10-2kg and a baseball of mass 0142kg have the same kinetic energy
a 540 g bullet moving at 803 ms strikes a 750 g woodenblock at rest on a frictionless surface the bullet
a 345 kg mass vertically compresses a spring 670 cm before it starts to rebound how high will the mass move above the
a fisherman is hauling in a fish at a speed of 014 ms the fishing line is being spooled onto a reel whose radius is
a 1860 kg truck traveling north at 41 kmh turns east andaccelerates to 60 kmha what is the change in the trucks kinetic
an electrically charged bullet of mass 0010 kg leaves the barrel of a gun traveling parallel to the ground and
a 10-kg mass is moving with a speed of 5 ms how much work is required to stop the
a 1500-kg car accelerates from 0 to 25 ms in 70 s what is the average power delivered by the engine 1 hp 746
n object weighs 921 n when it is in air and 729 n when it isimmersed in water what is the specific gravity of the
a 1 m diameter wagon wheelconsists of a thin rim having a mass of 6 kg and six spokes eachwith a mass of 15 kgfind the
a 117-m-radius ferris wheelrotates once each 32 sa whats its angular speed in radsecb what is the linear speed of a
the objective of a telescope has a focal length of 50 cm and thefocal length of the ocular is 2 cm what is the angular
during a tennis serve a racket is given an angularacceleration of magnitude 160 rads2 at the top of theserve the racket
a force of 10n acts on two blocks on frictionless surface the first block is 3kg and the second block is 2kg what is
captain omega of the imperial space patrol is in his starcruiserwhich is in a circular orbit around the mysterious
the angle of incidence at a solidliquid boundary is 653deg andthe index of refraction of the solid is n 171a what must
an amusement park ride called the rotor consists of a room in theshape of a vertical cylinder 198 m inradius which once
a solid sphere is released from rest and allowed to roll down aboard that has one end resting on the floor and is
an artillery shell is fired from a cliff 204 m above a valley witha velocity 254 ms at an angle 378 ordm above the