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the drawing shows two boxes resting on frictionless ramps onebox is relatively light and sits on a steep ramp the other
when four people with a combined mass of 340 kg sit down in acar they find that the car drops 090 cm lower on its
a student uses an audio oscillator of adjustable frequency tomeasure the depth of a water well two successive resonant
in an electric shaver the blade moves back and forth over adistance of 21 mm in simple harmonic motion with frequency
a particular type of automobile storage battery is characterized as425-ampere-hour 99 vwhat total energy can the
a certain substance has a mass per mole of 39 gmol when 288 jis added as heat to a 285 g sample ofthis material its
a 170-mh inductor with internal resistance of 220 omega is connected to a 120-v rms source if the average power
an unstable particle is at rest and suddenlybreaks up into two fragments no external forces act on theparticle or its
a very long wire generates a magnetic field of 9x 10-7 at a distance of 3 mm what is the magnitude of the
a 540-w space heater is designed for operation in germany where household electric outlets supply 230 v rms service
you are given a 120 v batterya hairdryer designed to workproperly at 120 v where its rated at 1200 w and a mixer
a wire encloses an irregularly shaped surface that is symmetric about the z-axis and lies in the xz-plane a 2a current
you are given a 9 v battery and three bulbs rated atrespectively 9v 5 w 9v 2w and 12 v 6w assume that the battery has
in a fusion reaction two deuterium nuclei combine to form a helium nucleus one of the incident nuclei is initially
a cylindrical cable with 159 x 10-8 m resistivity carries a current of 1000a there is a potential difference of 19 x
there are four charges each with a magnitude of 206 muc two are positive and two are negative the charges are fixed to
a long solenoid with 100 turnscm and aradius of 700 cm carries a current of280 ma a current of 500 a exists in a
water flows over a section of niagara falls ata rate of 120 x 106 kgs and falls 500 m what is the power dissipated by
a solid sphere is thrown on a horizontal plane in sucha way that initially it slips without rolling in a
an ac generator has an output rms voltage of 54 v at a frequency of 46 hz if the generator is connected acrossa 5 mh
a window repairman picks up one end of a large sheet of glassa second smaller piece of glass is on top us08 and uk02a-
a 730-muf capacitor is connected to a generator operating at alow frequency the rms voltage of the generator is 300 v
a steel rod rho 7860 kgm3 has a length of255 m it is bolted at both ends between immobile supportsinitially there is
an ac generator has 80 rectangular loops on its armature eachloop is 13 cm long and 6 cm wide the armature rotates at
a block of mass m10kg is acted on by an applied forcef1 directed at 30degrees above the horizontal the blockslides on a