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a ballplayer catches a ball 33s after throwing it vertically upward with what speed did he throw it and what height did
a rocket is launched straight up with constantacceleration four seconds after liftoff a bolt falls offthe side of the
the weight of an object at the surface of a planet isporportional to the plants mass and inversely porportional to
a woman finds the front windshield of her car covered with iceat -138degc the ice has athickness of 430 x 10-4 mand the
a stationary motion detector sends sound waves of 07 mhztoward a truck approaching at a speed of 550 ms the speed
a foul ball is hit straight up into the air with a speed of about 25 msa how high does it gob how long is it in the
how would you estimate the maximum height you could throw a ball vertically upward how would you estimate the maximum
a train starts from rest and accelerates at a rate of 170msfor 138s it runs at constant speed for 699s andslows down at
two soccer players start from rest 43 m apart they run directly toward each otherboth players accelerating the first
a spherical balloon expands when it is taken from the coldoutdoors to the inside of a warm house if its surface
an electron is accelerated southward at 102 x 109 ms2 by an electric field determine the magnitude and direction of the
sunlight is observed to focus at a point 185 cm behind alenswhat kind of lens is itwhat is its power in
the electric field midway between two equal but opposite point charges is 845 nc and the distance between the charges
a lead ball is dropped into a lake from a diving board 50 mabove the water after entering the water it sinks to
during the launch from a board a divers angular speed abouther center of mass changes from zero to 700 rads in 310
a surface encloses the charges q1 32 microc q2 69 microc and q3 -41 microc find the electric flux through the
nerve cells are long thin cylinders along which electric disturbances nerve impulses travel the cell membrane if a
two point charges of equal magnitude are d 80 cm apart at the midpoint of the line connecting them their combined
a container holds a gas consisting of 39 moles of nitrogen molecules one in a million of these molecules has lost a
a rookie quaterback throws a football with an initial upwardvelocity component of 130 ms and ahorizontal velocity
a physics book slides off a horizontal table top with a speedof 115 ms it strikes the floor in0500 s ignore air
some european trucks run on energy stored in a rotatingflywheel with an electric motor getting the flywheel up to its
an arrow is fired with a speed of 200 ms at a block ofstyrofoam resting on a smooth surface the arrow penetrates