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a solid block is attached to a spring scale the reading on the scale when the block is completely immersed in water is
a particle moves at a constant acceleration along the curve x2 x1100 from point a to point b the velocity of the
water has a density of 1000 kgm3 1 atm 1013 x 105 nm2 water at a gauge pressure of 44 atm enters a building at ground
water is pumped out of a well at 5000 ms through a 8000 cm diameter hose the well is 3000 ft deep what power is needed
what is the lowest frequency in hz that will resonate in a 3 m length organ pipe closed at one end velocity of sound
a person working on the transmission of a car accidentally drops a bolt into a tray of oil the oil is 486 cm deep the
the vibration of a system in the ground state is called zero point motion because the molecule is at zero kelvin the
a projectile proton with a speed of 350 ms collides elastically with a target proton initially at rest the two protons
one section of a steel railroad track is 27 m long if its temperature increases by 22 k during the day how much does
a 055 kg projectile is launched from the edge of a cliff with an initial kinetic energy of 1550 j and at its highest
to verify her suspicion that a rock specimen is hollow a geologist weighs the specimen in air and in water she finds
four objects are situated along the y axis as follows a 206 kg object is at 296 m a 297 kg object is at 242 m a 251 kg
what are the primary and secondary products of lipid oxidation at which stage of the lipid oxidation are they
a rectangular coil with dimensions of 80 cmtimes10 cm is dropped from a zero magnetic field position to a 14 t magnetic
describe the principle of peroxide value method used to measure the oxidation of food lipid and give the major reaction
if the uncertainty in velocity of an electron is 47000 ms what is the minimum uncertainty in its
a billiard ball moving at 500 ms strikes a stationary ball of the same mass after the collision the first ball moves at
if the work function of a metal is 451 ev what is the maximum wavelength of light that can be used to observe the
a120g copper bowl contains185g of water both at 200degc a very hot 300 g copper cylinder is dropped into the water
no object can travel faster than the speed of light what is the minimum uncertainty in the position of an electron
calculate the wavelength of light emitted from a hydrogen atom when it undergoes a transition from the n6 level to
calculate the wavelength of a photon emitted when the electron in a li2 ion relaxes from the n9 energy level to the n5
a cook puts 880 g of water in a 200-l pressure cooker that is then warmed to 480degc what is the pressure inside the
microwaves cook by emitting radiation with a frequency of 245x109s-1 calculate the number of photons required to raise
the density of ice is 917 kgm3 and the density of sea water is 1025 kgm3 a swimming polar bear climbs onto a piece of