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the seconds hand on a certain clock is 158 cm long what is the tangential speed in cms of the tip of this
the speed of a bicyclist that is riding in the direction of the wind is 76 kmh relative to the wind if the speed of the
a bare helium nucleus has two positive charges and a mass of 664 10-27 kga calculate its kinetic energy in joules at
four identical springs are used as part of a cars suspension system one on each wheel the springs compress by 8cm when
a transverse wave propagates in the positive x-axis with a wavelength of 03m and a period of 0001sa what is the
a mercedes-benz 300sl m 1800 kg is parked on a road that rises 10deg above the horizontala what is the magnitude of
a 560 kg crate rests on a level floor at a shipping dock the coefficients of static and kinetic friction are 0790 and
a rollercoaster with passengers has a mass of 2500 kg this rollercoaster is powered to the top of a 25 m hill where it
sodium ions na move at 0858 ms through a bloodstream in the arm of a person standing near a large magnet the magnetic
a strip of copper 30 cm wide carries a current i 285 a to the right see figure below the strip is in a magnetic field
a stone is thrown horizontally at 450 ms from the top of a very tall cliff calculate its horizontal position and
an air-filled toroidal solenoid has a mean radius of 130 cm and a cross-sectional area of 580cm2 when the current is
the position of a squirrel running in a park is given by r00280 mst00360 ms2t2i00190 ms3t3j at 420 how far is the
a toy cannon uses a spring to project a 531-g soft rubber ball the spring is originally compressed by 497 cm and has a
a platinum resistance thermometer has resistances of 20697 w when placed in a 0degc ice bath and 25743 w when immersed
a ball with a radius of 18cm rolls on a level surface and the translational speed of the center of mass is 026ms what
communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as
when you lift a bowling ball with a force of 802 n the ball accelerates upward with an acceleration a if you lift with
the plates of a spherical capacitor have radii 360 mm and 440 mma calculate the capacitancepfb what must be the plate
a helicopter is lifting two crates simultaneously one crate with a mass of 112 kg is attached to the helicopter by
a slab of copper of thickness b 230 mm is thrust into a parallel-plate capacitor of plate area a 200 cm2 and plate
a cork ball of mass 120 g is placed between two very large horizontal planes of charge the bottom plane has a uniform
two blocks of masses m11 kg and m2 2 kg are connected by a massless cord passing over a massless frictionless pulley
an object of mass 15 kg falls from a height of 80 m above the ground what will be its speed and kinetic energy when it
an indoor running track is square-shaped with rounded corners each corner has a radius of 530 m on its inside edge the