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pulsed lasers used in science and medicine produce very short bursts of electromagnetic energya if the laser light
derive the equation for the linear acceleration of a falling mass m suspended by a string from the rim of a uniform
a duck is floating on a lake with 23 of its volume beneath the water what is the average density of the
in an em wave traveling west the b field oscillates vertically and has a frequency of 840 khz and an rms strength of
the drawing shows an intravenous feeding with the distance shown nutrient solution 1050 kgm3 can just barely enter
an antifreeze solution is made by mixing ethylene glycol 1116 kgm3 with water suppose the specific gravity of such a
a heater runs on an ac voltage of 120 v and draws a power of 25 w if this heater were run instead on a dc voltage of 75
the drawing shows a collision between two pucks on an air-hockey table puck a has a mass of 00500 kg and is moving
a block of weight w 250n sits on a frictionless inclined plane which makes an angle theta 290circ with respect to the
an electric power station is producing 12 x 103 w of power that is to be sent to a small town located 13 km away each
a electromagnetic monophonic wave of frequency 6001012hz green light propagating in the positive x direction in a
you want to take a full-length photo of your friend who is 180rm m tall using a 350rm mm camera having a 500rm mm lens
a bullet of mass m 800 g is fired into a block of mass m 190 g that is initially at rest at the edge of a table of
a skycam captured a video from directly overhead of an ice skater performing a spin when viewed from above she was
a roller in a printing press turns through an angle given by where 320 and 0500part a calculate the angular velocity
a railroad car of mass 35104 kg moving at 250 ms collides and couples with two coupled railroad cars each of the same
a 900-kg fullback running east with a speed of 500 ms is tackled by a 950-kg opponent running north with a speed of 300
chris spends his spare time running a bungee jumping service off the henley street bridge he has a 123 ft long bungee
a 270- kg load is lifted 220 m vertically with an acceleration a0130 g by a single cable determine the tension in the
a ski gondola is connected to the top of a hill by a steel cable of length 620 m and diameter 13 cm as the gondola
two blocks of ice one four times as heavy as the other are at rest on a frozen lake a person pushes each block the same
an adventurous archaeologist crosses between two rock cliffs by slowly going hand over hand along a rope stretched
you are designing the section of a roller coaster ride shown in the figure previous sections of the ride give the train
a 731-kn car is traveling at 709 mph when the driver decides to exit the freeway by going up a ramp after coasting 383
robert has just bought a new model rocket and is trying to measure its flight characteristics the rocket engine package