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suppose a cars standard tires are replaced with tires 130 times larger in diameter then what will the speedometer
a diver of mass 68 kg stands at the end of a uniform diving board of mass 16 kg and length 45 m the board is attached
a spring-block system executes simple harmonic motion the mass of the block is m 12 kg and the total energy is e 18 j
the net entropy changes when a 81g ice cube initially at 0 degrees c melts in a room what is the net entropy change if
gas in a container is at a pressure of 15 atm and volume of 4 m3 what is the work done on gas a if it expands at
15 o and 131 i are isotopes used in medical imaging 15 o is a beta-plus emitter 131 i a beta-minus emitter what are the
a siphon as shown in the figure figure 1 is a convenient device for removing liquids from containers to establish the
a large tank with diameter d open to the air contains water to a height h a small hole with diameter d d ll d is
a 100g cube of ice at 273k is dropped into 1kg of water that was originally at 353k what is the final temperature of
a 54g ice cube can slide without friction up and down a 33 degree slope the ice cube is pressed against a spring at the
if the volume of an ideal gas is held constant what happens to the pressure if the absolute temperature is cut in halfa
the atomic mass of ammonia is 17 atomic mass units what is the atomic mass of nitrogen if a molecule of ammonia
what are room temperature 68 deg f and body temperature 986 deg f on the celsius scale choose one answer a room temp
youre driving behind an ambulance on the highway at a speed of 65 mph if the speed of the ambulance is 60 mph will the
youre listening to a loudspeaker with an initial output of 50 watts and someone turns it up to 100 watts will the music
in certain ranges of a piano keyboard more than one string is tuned to the same note to provide extra loudness for
if a human ear canal can be thought of as resembling an organ pipe closed at one end that resonates at a fundamental
a ball is hung from a rope making a pendulum when it is pulled 5 degrees to the side the restoring force is 10 n what
a multicylinder gasoline engine in an airplane operating at 235 103 revmin takes in energy 783 103 j and exhausts 457
let h 255 m and vi 136 ms find the speed of the ball just before it hits the ground vf 26167919 ms find the balls
two circular parallel plates having charges of equal magnitude but opposite sign are separated by 1158cm each plate has
a teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a
the speed of a transverse wave on a string is 435 ms while the wavelength is 0160 m the amplitude of the wave is 160 mm
one of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms
a nuclear power plant has an actual efficiency of 33 if of energy are released from fission how much electric power