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two equal charges of 300 mc lie along the x-axis one is at the origin and the other is 20m from the origin discover the
assume four protons were at the corners of a squarenbsp the length of each side of the square is 152 x 10-9mnbsp if q1
two cannons are pointed directly towards each other one on the ground pointing upwards a second on a hill pointing
a whale swims due east for a distance of 69 km turns around and goes due west for 18 km and finally turns around again
a dog and a sled are moving due east together with a velocity of 20ms vi 20 ms the dog with a mass of 20 kg or md
a worker is testing a multiple pulley system to estimate the heaviest object that he could lift the largest downward
a sample of a radioactive isotope has an initial activity at time t 0 of 0500 mci at time t 512 d the activity is
a car in an amusement park ride rolls without friction around the track it starts from rest at point a at a height h
the first three harmonics in an organ pipe are 126 hz 378 hz and 630 hz a is the pipe open-open or open-closed b taking
a droplet of ink in an industrial ink-jet printer carries a charge of 30 10-13 c and is deflected onto paper by a
a parachutist with a camera descends in free fall at a speed of13 ms the parachutist releases the camera at an altitude
the driver accelerates a 2600 kg snowmobile which results in a force being exerted that speeds up the snowmobile from
the rain-soaked shoes of a person might explode if ground current from nearby lightning vaporizes the water the sudden
a young girl spins a hula hoop of mass 074 kg and radius 073 m around her waist assuming that the girls waist is much
measurements of the radioactivity of a certain isotope tell you that the decay rate decreases from 8280 decays per
a 840-rm kg block of ice released from rest at the top of a 124-rm m-long frictionless ramp slides downhill reaching a
a gymnast of mass 52 kg is jumping on a trampoline she jumps so that her feet reach a maximum height of 25 m above the
an airplane travels 277 m down the runway before taking off assuming that it has constant acceleration if it starts
a passenger car traveling down a rough road bounces up and down at 12 hz with a maximum vertical acceleration of 020
a 10cm10cm10cm block of steel rho steel 7900kgm3 is suspended from a spring scale the scale is in nektons1 what is the
the measure pressure at the bottom of a cylinder of liquid is 070 atm the liquid is poured into another cylinder by
a 237kg roller coaster starts at rest from the top of a 405m hill and goes during a circular loop of radius 169m what
a uniform cylindrical pop soda can of mass 0140 kg is 120 cm tall and filled by 131kg of pop soda small holes are
a hunter aims directly at a target on the same level 137 m away if the bullet leaves the gun at a speed of 271 ms by
what is the drag force exerted on a runner running at a 7minmi pace 383 ms on a day with no wind suppose a coefficient