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part 11 engine 1 does twice the work of engine 2 is it correct to conclude that engine 1 produces twice as much power
a linearly polarized plane wave of wavelength lembda is travelling in air and ia incident normally on a plane sheet of
1 an object initially at rest reaches a velocity of 30ms in 6 seconds how much work is done during this time interval2
1 why are batteries sometimes installed as parallel circuits and other times installed as series circuits2 what affects
1 a house is fitted with 20lamps of 60 watt each 10 fans consuming 05 ampere each and an electric kettle of resistance
1 two charges are placed at opposite ends of a meter stick approximately where could a third charge be placed so it
1find the resistance of a light bulb that is connected to a 120-volt line and has a current of 05 amps flowing through
1a series circuit consists of 10000 20000 and 30000 ohm resistors connected in series across a 10-volt battery
resistivity problems1 how long should a copper wire 04mm in diameter be for it to have a resistance of 10ohms the
a transformer is an electrical device that can change the voltage from one value to another based on the principle of
1a magnetic levitation train runs on two parallel rails 120m apart the rails each carry the same current i 100 times
a glass contains 025kg of water at 0c 015kg of ice also at 0c is added to water and it is noticed that after 11 minutes
what is the horsepower required to accelerate a 400 ib car from rest to 60 mph in 10 secondsa what is the kg
what is the flow rate in gpm gallon per minute for the water to run through each of the reversible turbine generator 6
in the circuit shown the current through the 12 v battery is measured to be 706 ma in the direction showna what is the
1 a typical photovoltaic cell delivers 42times10-3 w of electric energy when illuminated with 012 w of light energy
equations describing wave dynamics and dispersion are used to deduce the following1 a wave of period 10s approaching
a pelton impulse turbine has blades designed so that the direction of the incoming water jet with speed u is reversed
1 the diagram below shows the acceleration of blood in the vasculature versus time in seconds give the time at which
given a nanowire with cross sectional dimensions of 10 nm x 10 nm what momentum would an electron in the ground state
a nucleus of helium with mass 5 amu breaks up from rest into a nucleus of ordinary helium mass 4 amu plus a neutron
imagine an electron trapped in a well that has walls that are 5nm thick and 10ev high and is 10nm wide calculate the
a radio station broadcasts at a frequency of 1mhz with a total radiated power of 5000 wattsa what is the wavelength of
1 consider an machlett dynamax x-ray tube with a tungsten target operating with an accelerating potential of 100 kv and
consider the corresponding problem for a particle confined to the right-hand half of a harmonic-oscillator potentialvx