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q1 a loudspeaker of mass 150 is suspended a distance of h 230 below the ceiling by two cables that make equal angles with the ceiling each cable has
q1 for years marine scientists were mystified by sound waves picked up by underwater microphones in the pacific ocean these so-called t-waves were
q1 a car travelling east at 380 ms passes a trooper hiding at the roadside the driver uniformly reduces his speed to 250 ms in 290 s how far does the
q1 a 275-mm-tall object is 80 cm to the left of a convex lens of 57 cm focal length find the image position and heightq2 a 290-kg body is moving in
q1 a professors office door is 080 wide 30 high and 50 thick has the mass of 25 and pivots on frictionless hinges a door closer is attached to the
q1 two point charges q1 -67 mu c and q2 30 mu c are located between two oppositely charged parallel plates the two charges are separated by the
q1 a merry-go-round rotates at the rate of 030 revs with an 80 kg man standing at the point 20 m from the axis of rotationwhat is the new angular
q1 a skater holds her arms outstretched as she spins at 180 rpm what is the speed of her hands if they are 150 cm apartq2 consider a horizontal
q a small block with a mass of 0170 kg is attached to a cord passing through the hole in a frictionless horizontal surface the block is initially
q1 a 20 kg block is at rest on a horizontal floor if you push horizontally on the 20 kg block with a force of 50 n it just starts to movea what is
q1 the escape speed from a very small asteroid is only 26 ms if you throw a rock away from the asteroid at a speed of 39 ms what will be its final
q1 a man pushes the lawn mower on a level lawn with a force of 240 n if 40 percent of this force is directed downward how much force is directed
q1 a 60 m ladder leans against a wall what is the minimum force of friction essential to prevent the ladder from sliding presume that the force in
q1 a 90 cm diameter wire coil is at first oriented so that its plane is perpendicular to a magnetic field of 067 t pointing up during the course of
q1 a krypton laser produces the cylindrical red laser beam 20mm in diameter with 20w of power what is the light intensity on a wall 070 m away from
q1 a 626-kg chandelier is suspended 15 m below a ceiling by three wires each of which has the same tension and the same length of 20 m see the
q1 a trapeze artist swings in simple harmonic motion with a period of 70 s the acceleration of gravity is 981 ms2 compute the length of the cables
q1 a 350- battery with negligible internal resistance a 900- resistor and a 175 inductor with negligible resistance are all connected in series with
q1 a 027 kg rock is thrown perpendicularly upward from the top of the cliff that is 32 m high when it hits the ground at the base of cliff the rock
q1 the driver of a 1700 car travelling on a horizontal road at 140 suddenly applies brakes due to the slippery pavement friction of the road on the
q1 a staging that weighs 440 n supports two painters one 110 n and the other 460 n the reading in the left scale is ft 800 n what is the reading fr
q1 a thin horizontal copper rod is 989696 m long and has a mass of 433758 gthe acceleration of gravity is 98 ms2what is the minimum current in the
q1 if a thunder clap comes 14 s after the lightning strike how far away is the strike calculating the wavelength and the speed of sound in air 330
q1 a rifle with a barrel length of 60 cm fires a 12 g bullet with a horizontal speed of 360 ms the bullet strikes a block of wood and penetrates to a
q1 a 247 kg steel ball strikes a massive wall at 117 ms at an angle of alpha 672deg with the plane of the wall it bounces off with the same speed