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assume the light bulb in figure 224b is replaced by a60omega electric heater that consumes 15 w of power the conducting
a converging lens of focal length 790 cm is 193cm to the left of a diverging lens of focal length -601 cm a coin is
1 a sample of neon gas has its volume doubled and its temperature held constant what will be the new pressure relative
two telephone poles are separated by 40 m and connected by a wire a bird of mass 050kg lands on the wire midway among
a skier of mass 79 kg starts from rest at the top of a hill that is inclined at 175deg with the horizontal the hill
in the neck of the picture tube of a certain black-and-white television set an electron gun contains two charged metal
a 150-m length of hose is wound around a reel which is originally at rest the moment of inertia of the reel is
while driving in the mountains you notice that when the freewaygoes steeply downhill there are emergency exits every
1 the near point of a certain eye is 100 cm in front of the eye what lens must be used to see clearly an object 25 cm
the limits of the visible spectrum are about 400 nm to 700 nm find the angular breadth of the first order visible
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what is the ratio of potential energy to kinetic energy for a comet that has now enough energy to escape from the suns
a woman enters an elevator and stands on a scale as the elevator begins to move the scale reads her apparent weight to
a school wants to purchase some round tables and some rectangular tables the costs of one round table and one
the sum of three numbers is 47 one number is three more than the smallest number and one number is twice the smallest
from dr deanna sharpe university of missouri comments what do we know can eat up the budget without us hardly
the trap-jaw ant can snap its mandibles shut in as little as14x10-4 s in order to shut both mandibles rotate during 91
an electron moving from the negative terminal to the positive terminal of a 12 volt battery gains or loses how much
what is the place of the centre of mass of a triangular shaped sheet of metal of uniform densitynbsp the triangle is an
what multiple of the time constant tau gives the time taken for an originally uncharged capacitor in an rc series
a vertical ideal spring is mounted on the floor and has a spring constant of 124 nm a 050-kg block is placed on the
a man pulls a 10 kg box across a smooth floor with a force of 58 newtons at an angle of 13 degrees and for a distance
horace jones had a colonoscopy shortly after his 50th birthday and the gastroenterologist noticed an unusual mass of
assume that in the course of a measurement the bridge is balanced and then the power supply voltage changes by 10 what
the maximum wavelength that an electromagnetic wave can have and still eject electrons from a metal surface is 469 nm