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a boy whirls a stonein a horizontal circle 16 m above the ground by means of a string14 m long the angle between the
a person is riding a bicycle and its wheels have an angularvelocity of 245rads then the brakes are applied and the bike
two loud speakers face each other vibrate in phase and produceidentical 451 hz tones a listening walks from one speaker
a car traveling 507 kmh is 219 m from a barrier when the driver slams on the brakes the car hits the barrier 203 slater
1 a car is rounding a curve with a radius of 120 m at 82ms when it hits a slippery patch what is the minimum
the brakes are applied to a car traveling on a dry level highway a typical value for the magnitude of the
three sticks are arranged to forma right triangle if the lenghts of the sticks are 47m 62m and 78m what are the angles
sinusoidal water waves are created 120 km off shore by anearthquake near a small island observers in helicopters above
a ball is dropped from rest from the top of a building of height h at the same instant a second ball is projected
an electric dipole consisting of charges of magnitude 290 ncseparated by 730 mum is in an electric field of strength
calculate a realistic estimate for the temperature at the surface of neptune using the black body radiation formula use
two spheres one with mass m radius r and the other mass 2mradius 3r are released from rest at a distance of 12r between
two 20-cm-diameter insulating spheres have a 530 cmspace between them one sphere is charged to 930 nc theother to -
a model of a red blood cell portrays the cell as a sphericalcapacitor a positively charged liquid sphere of surface
two parallel plate capacitors have circular plates the magnitudeof the charge on these plates is the same however the
an electron and a proton are initially very far apart effectivelyan infinite distance apart they are then brought
the gas inside of a flexible container at 2982 k has apressure of 025 atm the size of the container starts out holding3
water has a mass per mole of 180 gmol and each water moleculeh2o has 10 electronsa how many electrons arethere in 3
a 009 kg arrow is pulled back in a bow after being held still it is let go moving 25ms after the 047 meters in which
a 016kg baseball is hit into the air when its 668 meters above the ground traveling 172 ms at a 55 degree angle what is
a power boat heads due northwest at 13ms relative to the water across a river that flows due north at 5ms what is the
there are four charges each with a magnitude of 18 muctwo are positive and two are negative the charges are fixedat
two geological field teams are working in a remote area a globalpositioning system gps tracker at their base camp shos
a uniformly charged plastic disk has a radius of 0440 m at what distance from the center along the central
there are four charges each with a magnitude of 20 microc two are positive and two arenegative the charges are fixed to