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a piece of metal foil is 1318 ft long and 512 inches wide the density of the metal is 8722 gcm3 and the specific heat
an energy storage system based on a flywheel a rotating disk can store a maximum of 44 when the flywheel is rotating at
air containing 1 mass water is humidified by adding water if air dry basis flows into the humidification process at
a source emits sound uniformly in all directions there are no reflections of the sound at a distance of 12 m from the
a high-speed lifting mechanism supports a 845-kg object with a steel cable that is 400 m long and 400 cm2 in
an interference filter is to be constructed for isolation of nitrobenzene absorption band at 1537 cm-1 if it is to be
assume that if the shear stress in steel exceeds about 400 108 nm2 the steel ruptures a determine the shearing force
1500 ml of radiator liquid from a car has a mass of 1569 g calculate the density of the radiator liquid based on the
an astronaut is being tested in a centrifuge the centrifuge has a radius of 10 m and in starting rotates according to
a temperature measurement of has three significant figures while a temperature measurement of has only two significant
a long rigid conductor lying along the x axis carries a current of 40 a in the negative direction a magnetic field b is
three identical freight cars are sitting on the tracks each separated by a small distance a fourth car is coasting with
a long solenoid has 150 turnscm and carries current i an electron moves within the solenoid in a circle of radius 240
a hamiltonian of one degree of freedom has the form with aband k areconstanthp22alpha-bqpexp-alpha tba2q2exp-alpha
an electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly
a 1500-kg satellite initially moving at 10 ms to the left burns its rocket engine for 40 seconds after the burn the
an object is placed directly between a large planet and a star find the distance from the planet for which the net
how is chemistry related to cellphones more likely to work in hurricanes than
an aluminum can is filled to the brim with a liquid the can and the liquid are heated so their temperatures change by
neutron stars are extremely dense objects that are formed from the remnants of supernova explosions many rotate very
two loudspeakers are located 315 m apart on an outdoor stage a listener is 163 m from one and 174 m from the other
this is a monochromatic light two thin slits are separated by 0150 mm which is placed 23 meters away you observe the
during an adiabatic expansion the temperature of 0430 moles of argon ar drops from 54 c to 15 c the argon may be
what is kd of a substance x if 25 ml of a 0015 m aqueous solution of x is extracted with 100 ml of ether the entire 25