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a 500-kg bullet is fired with a velocity of 1000 ms toward a1000 kg stationary solid block resting on a frictionless
a tennis ball may leave the racket of a top player on the servewith a speed of 670 ms if the ballsmass is 00600 kg and
the force of a bullet is given by theformula f830-35105 s-1t n over the time interval t0 andt4010-3 sa determine the
according to the guinness book of world records 1990 thehighest rotary speed ever attained was 2010 ms 4500 mph
what uniform magnetic field applied perpendicular to a beam of electrons moving at 23106 ms is required to make the
the maximum wavelength for which an electromagnetic wave can ejectelectrons from a platinum surface is 196 nm when
a 92-kg fullback running at 50 msattempts to dive directlyacross the goal line for a touchdown just as he reaches the
a 1200 kg two-stage rocket is traveling at aspeed of 690103 ms away from the earth when a predesigned explosion
a centrifuge is a device in which a small container of material is rotated at a high speed on a circular path such a
a tennis ball of mass m080kg and speed v30ms strikesa wall at a 45 degree angle and rebounds with the same speed at
an object at rest is suddenly broken apart into twofragments by an explosion one fragment acquires twice thekinetic
a 0200 kg plastic ball moves with a velocity of 030 ms itcollides with a second plastic ball of mass 0100 kg which
a 350 g aluminum cupcontains 750 g of water inthermal equilibrium with the cup at 65degc the combination of cup and
a box of negligible mass rests at the left end of a 206-m 265-kg plank seefigure the width of the box is w 689 cm and
a 1400-kg sports car accelerates from rest to 95kmh in74s what is the average prower delivered by the
a boy throws directly downward an ideally elastic ball from theheight 480m the ball is being bounced from the floor
while a mass of 2kg is on a flat surface a parallel force f pusheson it that it moves along the surface at a angle of
a man swings froma rope on the top of a building that is30 meters high he is standing at 10 meters high what is his
the rotor is an amusement park ride where people stand against theinside wall of a cylinder once the cylinder is
the output voltage of an ac generator is given by deltav 780 v sin 30pit the generator is connected across a 0900 h
nancy pulls on a light box resting on a frictionlesssurface with a 6 newton force northwardedward pulls with a 4newton
a charge of q is located atthe origin while an identical charge is located on the xaxis at x 050 m a thirdcharge of 5q
a ball has a density of 900 kgm3 and its volume is003m3 to submerge in water the ball must be held downby the force
a horizontal conductor in a power line carries a current of5000 a from south to north earthsmagnetic field 600 microt
in a 832 km race one runner runs at a steady 1211 kmh and another runs at 1432 kmh how long does the faster runner have