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waly whacko claims to have invented a heat engine that will revolutionize industry it runs between a hot source at
a 100-w driveway light bulb is on 10 hours per day assuming thepower company charges 10 cents for each kilowatt-hour of
430 g lead bullet traveling at 320 ms is stopped by a large tree if half the kinetic energy of the bullet is
an electron acquires 64 x 10-16j of kinetic energy when it isaccelerated by an electric field from plate a to plate b
a gas cylinder holds 10 mol of o2nbsp atnbsp 150 degrees celsius and a pressure of 30atm the gas expands adiabatically
compressed air can be pumped underground into huge caverns as a form of energy storage the volume of a cavern is 740
a0430kg pendulum bob passes through the lowest part of its path at a speed of380msa what is the tension in the pendulum
changing reaction buffer to an extremly high ph with addition of sodium carbonate is said to stop the reaction what two
a platinum wire is used to determine the melting point of indiumthe resistance of thenbspplatinum wire is 2000 omega at
in a summer day is the outside temperature is 100of what will be the temperature in centigrade scale oc and on the
calculate the number of moles of h2o formed when 0200 mole of baoh2 is treated with 0500 mol of hclo3 according to the
a box sits at the top of an unfolding ramp as the ramp isgradually tilted down from horizontal the box will
a 295 -g sample of an unknown chlorofluorocarbon is decomposed and produces 585ml of chlorine gas at a pressure of 748
a hunter aims directly at a target on the same level 966 m away if the bullet leaves the gun at a speed of 181 by how
2nios2niso2gif o2 is collected over water at 400c and a total pressure of 751mmhg what volume of gas will be collected
a 0015 kg lead bullet is tested by firing it into a fixed block of wood with a mass of 108 kg the block and imbedded
one cubic centimeter of a cumulus contains 420 water dropswhich have a typical radius of 10 muma how many cubic meters
a sky-diver jumps out of a plane and achives terminal velocity before opening his parachute explain what is meant by
a car starts at a point with polar coordinate 36 m 0o and travels around the circle to the point 36 m 180o what is the
water flowing out of a horizontal pipe emerges through a nozzle is 048 cm the speed of the water in the pipe is 062 ms
a 300 kg child takes a ride on a ferris wheel that rotates four times each minute and has a diameter of 210 mwhat force
water flows straight down from an open faucet the cross sectionalarea of the faucet is 18x10-4 m2 and thespeed of the
a softball is hit into the air ignore air resistance at an angleof 35 deg at a height of 07m it barely goes over a
a 316muf capacitator is chargedby a 130 v battery it is disconnectedfrom the battery and then connected to an uncharged
a bat flying at 525 ms is chasing an insect in the same direction the bat emits a 3990-khz chirp and receives back an