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an oil slick on water is 90 nanometers thick and illuminated by white light at an incidence angle of 00 degrees to its
a tennis ball is hit vertically upward with a speed of 210 ms from the roof of an office building that is 275 feet
a power station delivers 520 kw of power at 12000 v to a factory through wires with total resistance 30 find how much
a x-ray with a copper target is operated at 44ma and 40kv if the x-ray tube current is reduced to 40ma what will be the
assume a ball of mass m 755 kilogram is dropped from rest at height h 129 meter above the groundassume the ball hits
andy drops a ball from a height of 128 m the ball hits the ground and rebounds to 40 percent of its original height
a subatomic particle created in an experiment exist in a certain state for a time of 78e-20 seconds before decaying
through the cold war american submarines operated as lone wolves at extreme ocean depths for many months at a time
a wet shirt weighing 515 n hangs from the center of a 111 m long clothesline causing it to sag 460 cm below the
a sample of helium gas is excited with an electric current which causes the helium to emit electromagnetic radiation
a proton moves with a speed of 0990ca compute its rest energymevb compute its total energygevc compute its kinetic
a stone with a mass of 0800kg is attached to one end of a string 0700m long the string will break if its tension
a 20 centimeter high object is located between a diverging lens with a focal point of 2 centimeter on the left and a
a valuable antique chest made in 1907 by gustav stickley is to be moved into a truck the weight of the chest is 1500 n
10 volts is applied to a resistor 2 amps flow through the resistor determine what is the resistors
a wheel is rotating about an axis that is in the z-direction the angular velocity is 6 rads at t0 increases linearly
brad tries out a weight-loss plan that involves repeatedly lifting a 450-kg barbell from the floor over his head to a
you are working on a project to determine the density of asteroids in order to figure out what minerals they might
elevator-scale reading1 what will the scale read if the elevator moves in free fall in kg2 what will the scale read if
the frequency for an ac source in an rlc circuit is 5 x 102 rads and its half of the resonance frequency the resistance
a mass less rope that passes over a frictionless pulley connects two blocks the mass of the block on the left is 10kg
one solenoid is centered inside another the outer one has a length of 47 centimeter and contains 6800 coils while the
a crane uses a cable to lift and lower an 845 kg mass compute the tension in the cable under the following conditions1
the speaker projects sound uniformly in all directions find at what distance from the speaker would the intensity be
a stereo speaker has a surface area of 0043 m2 the acoustic power output of the speaker is 15 watt compute what is the