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a wind turbine is initially spinning at a constant angular speedas the winds strength gradually increases the turbine
in a particular crash test an automobile of mass 1217 kg collides with a wall and bounces back off the wall the x
a 0031 kg bullet is fired verticallyat 210 ms into a 015 kg baseball that is initially at rest how high does the
a railroad car of mass 290multiplied by 104 kgmoving at 300 ms collides andcouples with two coupled railroad cars each
a 700 kg person throws a 00500 kg snowball forward with a ground speed of250 ms a second person with a massof 550 kg
a car with a 65 cm diameter wheel travels 30 km how many revolutions does the wheel make in this
high-speed stroboscopic photographs show that the head of a200 g golf club is traveling at58 ms just before it strikes
a 357 kg block is drawn at constant speed 406m along ahorizontal floor by a rope the force on the block from therope
an insulated sphere has a uniform volume charge densityrho and ra what is the magnitude of the electric field in all
cosmic rays interacting with the earthrsquos upper atmosphereproduce muons that decay with a mean lifetime of220x10-6 s
in a certain compound microscope the object is 110 mm from the objective the lenses are345 mm apart and the
a camera flash circuit being used for a coil gun with a capacitance of 180 mf is charged to a voltage of 330 volts
a charged particle moves through a velocity selector at a constant speed in a straight line the electric field of the
a compact disk player has just been turned off a disk deceleratesuniformly from an initial angular velocity of 890 revs
a particle of charge q 84 microc is moving at an angle of 24deg with respect tothe x axis with a speed of 265 ms there
a proton moves at a speed of 1155 ms in a direction perpendicular to amagnetic field with a magnitude of 074 t what is
a ball thin spherical shellof mass m and radius rand a very small lead marble much smaller radius thanthe ball so it
a 35kg block is accelerated by a horizontally compressedspring whose spring constant is 640 nm after leaving thespring
a person walks into a room that has on opposite walls two planemirrors producing multiple images find the distances
a wheel 200 m in diameter lies in a vertical plane androtates with a constant angular acceleration of 400radsec2 the
a curved mirror has a focal point images form at the focal point right but ive seen problems where this is not true i
a large man sits on a four-legged chair with his feet off the floor the combined mass of the man and chair is 950 kg if
a quantity of steam 500 g at 106 c is condensed and the resulting water is frozen into ice at 0 c how much heat was
an astronaunt has landed on a strange new planet and conducts an experiment to determine the acceleration of gravity
a person pushes horizontally with a force of 170 n on a 60 kg crateto move it across a level floor the coefficient of