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an electron moves in a circular path perpendicular to a magnetic field of magnitude 0260 t if the kinetic energy of the
a girl of mass m is taking a picnic lunch to her grandmother she ties a rope of length r to a tree branch over a creek
the electric motor of a model train accelerates the train from rest to 0680 ms in 340 ms the total mass of the train is
an airplane pulls a 25 kg banner on a cable as depicted in the figure below when the plane has a constant cruising
a sled is moving down an incline plane the mass of the sled is 40 kg the angle is 35 degrees coefficient of kinetic
determine the answer to each of the following a the number of unpaired electrons in the mn2 ion show valence orbital
a 21 multiplied by 103-kg car starts from rest at the top of a 45-m-long driveway that is inclined at 16deg with the
a daredevil on a motorcycle leaves the end of a ramp with a speed of 385 ms as in the figure below if his speed is 370
a copper wire has a square cross section 25 mm on a side the wire is 32 m long and carries a current of 46 a the
calculate the standard entropy change for the reaction 2nas cl2 g --gt 2nacl s using the data from the following table
the mechanical advantage of a hydraulic jack is 450 find the weight of the heaviest automobile that can be lifted by an
given the following information will caco3 be precipitating when ca2 001 moll co3 2- hco3 - h2co3 01 moll
a monkey is swinging on a vine the monkeys mass is 72kg and the tension in the vine when it is vertical is 820 n when
the small piston of a hydraulic press has an area of 800 cm2 if the applied force is 250 n find the area of the large
a solution made by dissolving 28 mg of insulin in 55 ml of water has an osmotic pressure of 155 mmhg at 25c calculate
a 43 kg mass with an initial velocity of v1 acirci where a 294 ms collides with and sticks to a 305 kg mass with an
why does ionic bonding almost always result in a solid rather than ion-pair
michael drops a penny into a river from a bridge 44 m above the water another penny is thrown vertically down by his
tdentity the species with the larger radius in each of the following pairs use the concept of effective nuclear charge
1- a ball is hurled straight up at a speed of 150ms leaving the hand of the thrower 300 m above grounda compute the
a given the following information for element x identify the element group in the periodic table the electron affinity
a mixture of ammonia and oxygen is prepared by combining 0260 l of nh3 measured at 0700 atm and 21degc with 0170 l of
a ball traveling with an initial momentum of 25 kg ms bounces off a wall and comes back in opposite direction with a
the ka for hocl is 27 x 10-8 what is the ratio of clo-hocl at ph 7 assume that the ph is determined by other species