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q1 tarzan m 75 kg tries to cross a river by swinging from an 110 m long vine his speed at the bottom of the swing just as he clears the water is 50
q1 a flight attendant pulls her 66 n flight bag a distance of 381 m along a level airport floor at a constant velocity the force she exerts is 35 n
q1 a 75-kg person sits on a 37-kg chair each leg of the chair makes contact with the floor in a circle that is 15 cm in diameter find the pressure
q1 a test rocket is launched by accelerating it along a 2000-rm m incline at 157 rm ms2 starting from rest at point a the incline rises at 350 circ
q1 what mass in grams of steam at 100degc should be mixed with 257 g of ice at its melting point in the thermally insulated container to produce
q1 a rightward force of 302 n is applied to a 289 kg crate to accelerate it across the floor the coefficient of friction between the crate and the
q1 a standardized biological microscope has an 80--focal-length objective what focal-length eyepiece should be used to achieve a total magnification
q1 a 500 g rubber ball is dropped from a height of 10 m and undergoes a completely elastic collision with the eartha what is the earths velocity
q1 suppose the gravitational force between two massive spheres is 100 n if the distance between the spheres is doubled what is the force between the
q1 a person is pulled to the right on a sled total mass of 543 kg across the surface of a frozen pond with a force of 866 newtons so that they move
q1 a carnot engine performs work at the rate of 430 kw while using 710 kcal of heat per second if the temperature of the heat source is 590degc at
q1 snoop in hot pursuit of the red baron is flying his vintage warplane in a loop-the-loop path his instruments tell him that plane is level at the
q1 a screen is placed 510 cm from a single slit that is illuminated with light of wavelength 677 nm if the distance between the first and third
q1 a child is sliding on a sled at 16 rm ms to the right you stop the sled by pushing on it for 080 rm s in a direction opposite to its motion if the
q1 a simple harmonic oscillator consists of a block of mass 180 kg attached to a spring of spring constant 107 nm when t 100 s the position and
q1 while a roofer is working on a roof that slants at 390 degrees above the horizontal he accidentally nudges his 930 n toolbox causing it to start
q1 consider a person of mass 72 kg what would his mass be if he was composed entirely of neutron-star material of density 3 times 1017 rm kgrm m3
q1 to push a 470-kg crate up a frictionless incline angled at 340deg to the horizontal a worker exerts a force of 369 n parallel to the incline the
q1 two identical 30 rm g particles each carry 30 rm mu c of charge one is held fixed and the other is placed 10 rm mm away and released find out the
q1 at the point of fission a nucleus with 98 protons is divided into two smaller spheres each with 49 protons and a radius of 74 10-15 m what is the
q1 light passes through a 230 linesmm grating and is observed on a 10m wide screen located 13m behind the grating three bright fringes are seen on
q1 if the focal length of the concave lens is -750 at what distance from the lens must an object be placed so that its image is formed 370 from
q1 what are sunspots and how are they related to the suns magnetic field is the magnetic field stronger weaker in sunspots how does the temperature
q1 a pipe open at one end has a fundamental frequency of 256 hz a second pipeidentical to first pipe is shortened by cutting off a portion of the
q1 a horizontal pipe contains water at a pressure of 150 rm kpa flowing with a speed of 16 rm ms the pipe narrows to one-half its original diameterq2