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a low-friction cart of mass 50 kg is attached to the spring the spring is stretched 15 m from its equilibrium length
a 118 kg fullback runs at the line of scrimmagea find the constant force that must be exerted on him to bring him to
a river 1018 m wide flows toward the south at 310 mmin a girl on the west bank wishes to reach the east bank in the
an archer wishes to shoot an arrow at a target at eye level a distance of 435 m away if the initial speed imparted to
a baseball has a velocity of 402 ms 899 mih directed horizontally as it is released by a pitcher the balls velocity
a bowling ball of mass 710kg and radius 920cm rolls without slipping down a lane at 364ms calculate its total kinetic
physicians perform needle biopsies to sample tissue from internal organs a spring-loaded gun shoots a hollow needle
a ball of mass 50 kg is lifted off the floor a distance of 17 m1 what is the change in the gravitational potential
a 14 projectile is launched at 380 at a 55angle to the horizontal at the peak of its trajectory it collides with a
youre a production engineer in a cookie factory where mounds of dough drop vertically onto a conveyer belt at the rate
high-speed photos of a 240 flea jumping vertically show that the jump lasts 14 and involves an average vertical
the distance from the sun to jupiter is 52 times longer than the earth-sun distance take the intensity of sunlight at
the intensity of the electromagnetic radiation from the sun when it reaches the uranus surface is approximately 4 wm2
a thin hoop of radius r 056 m and mass m 96 kg rolls without slipping across a horizontal floor with a velocity v 44
two blocks of masses m1 200 kg and m2 425 kg are each released from rest at a height of y 520 m on a frictionless
the human eye can detect light intensities as small as about 8 10-23 wm2 the corresponding electric field amplitud is
a 40-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to
in san francisco a very simple technique is used to turn around a cable car when it reaches the end of its route the
water flowing through a 18cm-diameter pipe can fill a 300l bathtub in 64 min what is the speed of the water in
two objects are moving in the xy plane object a has a mass of 35 kb and has a velocity va of 53 ms at an angle of 30
the base of an aluminum block which is fixed in place measures 90 cm by 90 cm the height of the block is 60 cm a force
the right-side rearview mirror of mikes car says that objects in the mirror are closer than they appear mike decides to
a satellite of mass m 270kg is in circular orbit around the earth at an altitude equal to the earths mean radius 6370
a bicycle has wheels with a diameter diameter not radius of 0580 m it accelerates uniformly and the rate of rotation of
a car is traveling at 50 miles per hours the driver sees a deer and hits the brakes the car slows at 20 fs2 how long in