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a pump is to lift 180 kg of water per minute through a heightof 360 m what output rating watts should the pump
engineering application acircular hole of radius 8470times10minus1 cm mustbe cut into the front panel of a displayunit
a 217-kg child descends a slide 35 m high and reaches thebottom with a speed of 22 ms how much thermal energy due
a basketball player makes a jump shot the 0600 kg ball is released at a height of190 m above the floor with a speed
cosmonaut andrei your co-worker at the international spacestation tosses a banana at you at a speed of 18 ms at exactly
in spherical coordinates the electrical field of a chargedistribution is given by e be-rz r-hat where the lengthscale
a flying squid is able to jump off the surface of the areaby taking water into its body cavity and then ejecting the
a transmission diffraction grating 420 linesmm is used to study the light intensity of different orders n a screen is
a cyclist approaches the bottom of a gradual hill at a speedof 20ms the hill is 51m high and the cyclist estimates that
a 100-kg astronaut mass includes space gear on a space walk is 50 m from a 3000-kg space capsule and at the full length
in an elastic head-on collision with a stationary target particle a moving particle recoils at one third of its
a isolated conducting sphere r30 cm has a charge placed on itssurface the surface charge density is uniform and has the
a particle with charge of 4 microcoloumbs is at the origin another identical particle is placed 2 m from the origin on
a sailboat runs before the wind with a consant speed of 42ms in a direction 32 deress north of west how far a west and
a proton of mass m moving with a speed of 30x 106 ms undergoes a head-on elastic collision with an alpha particle of
one end of a 023-m copper rod with across-sectional area of 110 10-4 m2 is driven into thecenter of a sphere of ice at
starting from rest a 100-kg block slides 300m down africtionless ramp inclined at 300deg from the floor to thebottom
the frequencies of the spectral lines in light from a distant galaxy are found to be two-thirds as great as those of
a low-power laser used in a physics lab might have a power of050 mw and a beam diameter of 30mm calculatea the average
the z0 boson discovered in 1985 is themediator of the weak nuclear force and it typically decays veryquickly its
a 200m wide river flows due east at a uniform speed of 20msa boat with a speed of 80ms relative to the water leaves
a ball is dropped from rest at the top of a 610 m tallbuilding falls straight downward and collides inelastically
a skier is gliding along at 472 ms on horizontal frictionless snow he suddenly starts down a 192deg incline his speed
a 663 kg elevator starts from rest it moves upward 27s with aconstant acceleration until it reaches its cruising speed
a rock is tossed straight up with a velocity of 400 mswhen it returns it falls into a hole 115 m deep what is therocks