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a cube of mass m 715 kg is placed on an inclined plane of mass m 667 kg which makes an angle 4830deg with the
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a jet takes off from sfo to yul the distance between the airports is 4100 km after a 1 hour layover the jet returns to
aceticle acid is a weak acid with pk475what is the ph of a solution prepared by adding 01 mol of acetic acid and 003
assuming air is made up of 20 oxygen gas and 80 nitrogen gas what molecules form when air is heated to
a carnot heat engine takes 89 cycles to lift a 15 kg mass a height of 15 m the engine exhausts 16j of heat per cycle
the coil of a galvanometer has a resistance of 216 and its meter deflects full scale when a current of 558 ma passes
a billiard ball moving at 580 ms strikes a stationary ball of the same mass after the collision the first ball moves at
you have separate solutions of hcl and h2so4 with the same concentrations in terms of molarity you wish to neutralize a
give the formulas of any solid products formed when the sodium salt of each of the anions in the far-left column is
a roller coaster reaches the top of the steepest hill with a speed of 60 kmh it then descends the hill which is at an
light travels a distance of 0945m in 450ns in a given substancewhat is the index of refraction of this
a projectile is fired with an initial muzzle speed 440 ms at an angle 45 from a position 6 meters above the ground
during a daytime football game you notice that a players reflective helmet forms an image of the sun 46cm behind the
a 297-kg motorcycle is accelerating up along a ramp that is inclined 306deg above the horizontal the propulsion force
two blocks of mass m1 80 kg and m3 65 kg connected by a rod of mass m2 15 kg are sitting on a very low-friction
suppose we hang a heavy ball with a mass m 17 kg so the weight is mg from a steel wire 25 m long that is 2 mm in
a hanging iron wire with diameter 015 cm is initially 24 m long when a 184 kg mass is hung from it the wire stretches
two long parallel wires separated by 500 cm carry currents in opposite directions the current in one wire is 145 a and
a ball is thrown horizontally from a cliff of height h at the very same moment a truck is passing by the base of the
an object with mass m1 320 kg rests on a frictionless horizontal table and is connected to a cable that passes over a
a 56-kg bucket of water is raised from a well by a rope if the upward acceleration of the bucket is 38 ms2 find the
jack and jill are maneuvering a 3400 kg boat near a dock initially the boats position is lt 2 0 3 gt m and its speed is
a planet of mass 700 1025 kg is in a circular orbit of radius 600 1011 m around a star the star exerts a force on the