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if the humidity in a room of volume 430m3 at 30 degrees c is 75 what mass of water can still evaporate from an open
humour me for a minute here and lets imagine that all interesting and plausible supersymmetry models have been cornered
a hydroelectric power plant draws water from a lake whose surface is 55 m above the turbines it draws the water through
you are building your own resistor out of a common heating element material nichrome rho 1x10-6 omega m at 20o ca
a hydrogen atom collides with a particle that delivers 832 ev of energy to the atom the electron in the atom absorbs
a hydrogen atom is excited from its ground state to the n 4 state the atom subsequently emits three photons one of
the hydrogen atom is the first element in the periodic table and is the lightest element hydrogen has one proton and
1 an electron of mass 911 x 10-31 kg has an initial speed of 400 x 105 ms it travels in a straight line and its speed
an ideal gas at 127 oc is enclosed in a cylindrical piston with the initial volume of the gas 0005 m3 the heat is
a an ideal gas in a 15l flask is initally at a pressure of 1000kpa and a temperature of 20oc what would be the new
an ideal gas is compressed isobarically from 872 m3 to 541 m3 at a pressure of 201 x 105 pa due to the addition of 411
an ideal gas goes through a cyclic process and does 400 j of net worka is a net amount of thermal energy added to or
a right circular cone is made of solid aluminum with uniform density rho 270 x 103 kgm3 its base of radius b14cm sits
an ideal gas is initially at temperature of 300kits volume triples while its pressure decreases by a factor of two what
an ideal gas in a piston is placed in a refrigerator which removes 525 j of energy from the gas via cooling the plunger
an ideal gas is at pressure 1105nm2 and occupies a volume 5m3 if the gas is compressed to a volume 1m3 while the
a square sheet of aluminum is uniformly 1 4mm thick it was cut to the shape shown along the function y xb b 032 and
an ideal solenoid is 185 cm long has a circular cross-section220 cm in diameter and contains 545 equally spaced thin
identical twins travel 20 light years from earth to a distant planet on separate ships one twin travels at 095c the
a in the hydrogen atom can the quantum number n increase without limitb can the frequency of possible discrete lines in
you have a real battery with an unknown voltage v an unknown internal resistance a real voltmeter with resistance of
hydrogen gas can only absorb em radiation that has an energy corresponding to a transition in the atom just as it can
the hydrogen ion concentrationh in a certain cleaning compound is h3610-12 use the formula ph-logh to find the ph of
hydrogen molecules with molecular mass 2016 gmol in a specific gas have an average velocity vrms equal to 199mswhat is
of all the hydrogen in the oceans 0030 0 of the mass is deuterium the oceans have a volume of 319 million mi3a if