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on a frictionless surface a sliding box collides and sticks to a second identical box that is initially at rest what
two people start at the same place and walk around a circular lake in opposite directions one has an angular speed of
an electromagnet used to lift a car at a junkyard needs to generate a magnetic field strength of about one tesla the
two slits with a separation of 85 x 10-5 cm create an interference pattern on the screen 23 m away if the tenth bright
a bottle of saline solution with a specific gravity of 102 is attached to a 12 m long piece of tubing with a 10 cm
a stone thrown horizontally from a height of 622 m hits the ground at a distance of 1430 m calculate the initial speed
a boy standing in a ditch throws a baseball upward toward his father the ball leaves his hand at ground level with an
an eagle with a 21m wingspan flaps its wings back and forth 20 times per minute each stroke extending from 45 degrees
a ship sails 130 km due north from island a to island b and then 92 km in the direction 22deg south of east to island c
assume you are a medieval knight attacking a castle with a canon the ball leaves the cannon with a speed of 409 ms the
the doppler effect using ultrasonic waves of frequency 227times106hz is used to monitor the heartbeat of a fetus a
an air conditioner connected to a 120 v rms ac line is equivalent to a 127 resistance and a 153 inductive reactance
0800-v potential difference is maintained across a 160-m lenght of tungsten wire the resistivity of tungsten is 1x10-5
an oscillating lc circuit consists of a 737 mh inductor and a 539 f capacitor if the maximum charge on the capacitor is
nbspa 50-g block of an unknown material is at 530degc it is dropped into a thermally insulated cup containing 007l of
spinal fluid pressure can be measured using a spinal tap in which a needle is inserted in the patients lower back with
steam enters at 4 mpa and 400 degrees c enters a nozzle steadily with a velocity of 60 ms and it leaves at 2 mpa and
right as the cup begins to slide the applied force is equal to the force of friction-draw a free body diagram for each
a steam turbine operates with 16 mpa and 350 degrees c steam at its inlet and saturated vapor at 30 degrees c at its
a 099-cm-diameter microscope objective has a focal length of 26 mm it is used in visible light with a wavelength of 532
steam enters an insulated pipe at 200 kpa and 200 degrees c and leaves at 250 kpa and 150 degrees c the inlet-to-outlet
a solid sphere is rolling on a surface what fraction of its total kinetic energy is in the form of rotational kinetic
light with a wavelength of 590 nm is incident on a diffraction grating a screen is placed at a distance of l 245 m
the rest energy of an electron is 0511 mev the rest energy of a proton is 938 mev assume both particles have kinetic