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biological systems usually work at 65 efficiency how many ml of ethanol can you obtain from the fermentation of 065 lbs
a grandfather pendulum has a simple brass rod of length l one night the temperature in the house is 240 oc and the
to focus a camera on objects at different distances the converging lens is moved toward or away from the film so a
two identical point charges are fixed to diagonally opposite corners of a square that is 0455 m on a side each charge
a 6 m long uniform ladder leans against a frictionless wall and makes an angle of 673 with the floor the ladder has a
a rectangular corral of widths lx l and ly 216l contains seven electrons what multiple of h28ml2 gives the energy of
a copper rod 830 cm long and with a diameter of 13 cm is used to poke a fire the hot end of the rod is maintained at
explain why the statement no process is 100 efficient is not the best statement of the 2nd law of
a large 200times104 aquarium is supported by four wood posts douglas fir at the corners each post has a square 490x 490
an engine absorbs 169 kj from a hot reservoir at 277degc and expels 122 kj to a cold reservoir at 27degc in each cycle
a hurricane wind blows across a 710 151 flat roof at a speed of 130a is the air pressure above the roof higher or lower
the rms electric field of an electromagnetic wave increases from 307 to 921 nca determine the wave intensities for the
a pitcher throws a fastball horizontally at a speed of 140 kmh toward home plate 184 m away a if the batters combined
you and your friends are doing physics experiments on a frozen pond that serves as a frictionless horizontal surface
a door is made of uniform material of density p and has a height of h t thick w wide when the door is released from
coherent light is passed through two narrow slits whose separation is 395 mirometers the second-order bright fringe in
louise spikes a volleyball during a game at the instant the volleyball leaves her hand its height is 26 m above the
a fully suited astronaut name bill lands on newly discovered plant called new and goes on an exploration walk on the
when 0250 grams of a polymer were dissolved in 229 ml of benzene at 216 degrees c the osmotic pressure was found to be
a cylindrical flask is fitted with an airtight piston that is free to slide up and down as shown in the figure below a
when 96 g of an unknown non-electrolyte is dissolved in 500 g of carbon tetrachloride the boiling point increased to
calculate the boiling point in degrees c of a solution made by dissolving 320 g of naphthalene c10h8 in 811 g of
you measure wavelength divided by 2 to be 70cm the temperature in the lab is 22 degrees celsius what is the frequency
a woman with mass of 58 kg stands at the rim of a horizontal table having a moment of inertia of 430 kgm2 and a radius
just an instant before reaching the very bottom of a semicircular section of a roller coaster ride the automatic