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a cylinder with a piston holds 080 m3 of oxygen at an absolute pressure of 80 atm the piston is pulled outward
a small ferryboat is 400 m wide and 600 m long when a loaded truck pulls onto it the boat sinks an additional 420 cm
in an em wave traveling west the b field oscillates vertically and has a frequency of 800 khz and an rms strength of
a viscous fluid is flowing in a constant cross-section horizontal pipe with a pressure difference across the pipe of 1
a gymnast with mass m1 430 kg is on a balance beam that sits on but is not attached to two supports the beam has a
a room has two opposing walls which are tiled the remainingwalls floor and ceiling are lined with sound-absorbent
converting sunlight to electricity with solar cells has an efficiency of 15 its possible to achieve a higher efficiency
suppose a slide similar to der stuka is 388 meters high but is a straight slope inclined at 45deg with respect to the
a converging lens with a focal length of 179 cm and a diverging lens are placed 260 cm apart with the converging lens
a professional golfer is examining a video of a practice swing the high-speed footage shows that his club is in contact
two people one of mass 75 and the other of mass 65 sit in a rowboat of mass 89 with the boat initially at rest the
a wheel is rotating about an axis that is in the z-direction the angular velocity is at increases linearly with time
two pucks a and b are on an air hockey table puck a is moving with an initial velocity of 55ms eastward and puck b is
a solar cell has a light-gathering area of 10 cm2 and produces 02 a at 08 v dc when illuminated with s 1000 wm2
to decrease the body temperature of a 66-kg person by 10 c what mass of alcohol must be evaporated from the persons
a particle of mass 0450 kg is attached to the 100-cm mark of a meter stick of mass 0125 kg the meter stick rotates on a
a machine does work at a rate given by pct2 where c 15ws2 and t is time find the work done by the machine between 15s
a hoop of mass m2 kg and radius r04 m rolls without slipping down a hill the lack of slipping means that when the
an atom in a solid vibrates at 10thz with amplitude 10pmpart a find the atoms maximum speedpart b find the atoms
a simple harmonic oscillator has spring constant k 66nm amplitude a 12cm and maximum speed 46mspart a whats the
recalling that an object smaller than the wavelength illuminating it cannot be seen what is the minimum kinetic energy
a mass-spring system undergoes simple harmonic motion with amplitude apart a what fraction of the systems energy is
a 111-kg cylinder rolls without slipping on a rough surface at an instant when its center of gravity has a speed of 103
a mass-spring system has k 552nm and m 0405kgpart a find the frequency of its simple harmonic motionpart b find the
calculate the temperature at which a tung- sten filament that has an emissivity of 025 and a surface area of 66times105