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a 120- shell is launched at an angle of 550 above the horizontal with an initial speed of 150 when it is at its
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a zero-resistance rod sliding to the right on two zero-resistance rails is separated by the distance l 051 m the rails
in an l-r-c series circuit 305 0401 and 598times10-8 when the ac source operates at the resonance frequency of the
a series ac circuit contains a 150 resistor a 190 inductor a 450 capacitor and an ac power source of voltage amplitude
a step-down transformer is used for recharging the batteries of portable devices the turns ratio n2n1 for a particular
a coil with internal resistance can be modeled as a resistor and an ideal inductor in series assume that the coil has
consider a series rlc circuit with r 15 l 190 mh c 75 microf and a maximum voltage of 142 va what is the impedance
a transformer on a pole near a factory steps the voltage down from 3600 v rms to 120 v rms the transformer is to
an electron is moving at a speed of 12104 ms in a circular path of radius of 19 cm inside a solenoid the magnetic field
1 kilograms of water are changeda from ice at 0degc into liquid water at 0degc andb from liquid water at 100degc into
an electron and a positron each have a mass of 911 x 10-31 kg they collide and both vanish with only electromagnetic
the speed of an ion in a particle accelerator is doubled from 0430c to 0860c the initial relativistic momentum of the
three identical particles a b and c each with charge q1000 micro coulombs are placed along a circle of radius r-100 m
laser light of intensity 15 wm2 polarized so that its electric field vector makes an angle 45o with the x-axis passes
a 100-kw laser with a beam area of 100 cm2 is incident normally on a mirror assuming perfect reflection what is the
a bronze cannon ball with a mass of 35 kg is fired vertically from a small cannon and reaches a height of 250 m if the
the drawing shows a skateboarder moving at 678 ms along a horizontal section of a track that is slanted upward by 516
a satellite circling the earth has an average power consumption of 3500 w assuming 57 efficiency for conversion of
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a 700 lb floating platform is at rest when a 200 lb crate is thrown onto it with horizontal speed v0 12 fts once the
the 0 particle has a mass of 4977 mevc2 it decays into a and each having mass 1396 mevc2 following the decay of a 0
a solution has a hydronium-ion concentration of 10 x 10-5 mol per liter what is the ph of this solution is this
assume that a 6 volt energy source is in a circuit that has a resistance of 10ohms determine the current and power
a person pushes a 160 kg shopping cart at a constant velocity for a distance of 220 m she pushes in a direction 260deg