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a small plastic ball of mass 934times10-3 kg and charge 0144c are suspended from an insulating thread and hangs among
biological tissues are typically made up of 98 water the density of water is 10times103kgm31 estimate the mass of a
a pendulum swings in a lab room with a period of two seconds you place that same pendulum on the top of a vertical pole
1 compute the number of cells in a hummingbird assuming the mass of an average cell is ten times the mass of a
approximately how many atoms thick is a cell membrane assuming all atoms there average about twice the size of a
the position of a 50g oscillating mass is given with x t 23 cm cos 13 t where t is in seconds1 determine the period2
a typical human body has surface area 14 m2 and skin temperature 33 cpart a if the bodys emissivity is about 090 whats
when non-metric units were utilized in the uk a unit of mass called the pound mass lbm was employed where 1 lbm
two rods one made of brass and the other made of copper are joined end to end the length of the brass section is 0280m
an ideal gas with 14 occupies 50l at 300 k and 110kpa pressure and is compressed adiabatically until its volume is 20 l
discover the electric energy density among the plates of a 225-f parallel-plate capacitor the potential difference
the electric potential at a position located a distance of 213 mm from a positive point charge of 790times10-9c and 148
water is poured into a long glass tube closed at one end what length of air column should be left above the water level
22 kgs of liquid hydrogen and 22 kgs of liquid oxygen enter a rocket engine where they are supposed to combust a large
a positive charge of 440c is fixed in place from a distance of 440 cm a particle of mass 510 g and charge 320 c is
two 530 x 10-9 c point charges are located on the x axis one is at x 033 m and the other at x - 033 m1 now the third
as liquid water freezesa its temperature increasesb it absorbs heat from its environmentc it releases heat into its
two identical particles each having a charge q is fixed in place a distance d apart a third particle of charge -q is
a particle of charge 325times10-6 c is 115 cm distant from a second particle of charge -221times10-6 c compute the
a helium balloon is utilized to lift a load of 103 n the weight of the envelope of the balloon is 50 n and the volume
a you warm 175kg of water at a constant volume from 160c to 305c in a kettle for the same amount of heat how many
a proton is released from rest at the left side of a region by a uniform electric field that is directed to the right
calculate the mean free path of air molecules at a pressure of 450times1013atm and a temperature of 300k this pressure
a physics lecture room has a volume of 210m31 for a pressure of 100 atm and a temperature of 260c utilize the ideal-gas
an insulated spherical conductor of radius r1 carries a charge q a second conducting sphere of radius r2 and initially