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1 a quantity of steam 800 g at 115oc is condensed and the resulting water is frozen into ice at 0oc how much heat was
a major-league pitcher can throw a baseball in excess of 435 ms if a ball is thrown horizontally at this speed
a rocket is fired at a speed of 00 ms from ground level at an angle of 500o above the horizontal the rocket is fired
a potential dissimilarity of 960 mv exists among the inner and outer surfaces of the membrane of a cell the inner
a golfer imparts a speed of 345 ms at angle 400o above the horizontal the tee and the green are a same elevationa
an electron follows a helical path in a uniform magnetic field of magnitude 0501 t the pitch of the path is 517 mum and
an electron is accelerated from rest by a potential difference v it then enters a uniform magnetic field of magnitude b
a round object with a diameter of 025 m weighing 500 newton starts from rest at the top of a 150 m long incline that
a glass sphere n 150 with a radius of 100 centimeter has a tiny air bubble placed 300 centimeter above its center the
a car with a mass of 13000 kilogram is traveling south at 120 ms collides with a car with a mass of 18000 kilogram that
a crate of mass 100 kilogram is pulled up a rough incline with an initial speed of 147 ms the pulling force is 930
a blackened roof measures 20 m by 50 m if the temperature of the suns surface is 6000k stefans constant sigma is 57 x
a 524-gram ball is thrown from the ground into the air with an initial speed of 163 ms at an angle of 274o above the
three point charges q -q and q a replaced at the corners of an equilateral triangle no other charged objects are nearby
the ceiling of an arena is 198 meter above the floor determine the minimum speed that a thrown ball would have to reach
in compressing the spring in a toy dart gun 4 joule of work is done when the gun is fired the spring gives its
while in orbit about the earth a space shuttles mass is 50000 kilogram and its speed is 8 kms evaluate what is its
two lightweight rods 24centimeter in length are mounted perpendicular to an axle and at 180 degree to each other at
the flywheel of a steam engine runs with a constant angular speed of 300 revmin when steam is shut off the friction of
the top of a tower much like the leaning bell tower at pisa italy moves toward the south at an average rate of 12 mmy
a transparent sphere of unknown composition is observed to form an image of the sun on the surface of the sphere
a 100 kilogram man is 34 of the way up a 10 meter ladder that is resting against a frictionless wall the ladder has a
a bicycle wheel with a mass of 25 kilogram and a radius of 33centimteter roll across a horizontal floor with a
a pendulum is made up of a 20 kilogram mass suspended on thin aluminum wire this pendulum has a period of exactly 4
a wheel rotating about a fixed axis with a constant angular acceleration of 20 rads2 turn through 24 revolutions during