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a delivery truck with 23 m -high aluminum sides is driving west at 80 kmhr in a region where the earths magnetic field
a demolition crew decides to take a break for lunch and leave their wrecking ball in suspension from the top of crane
determine the net force of gravity acting on the moon during an eclipse when it is directly between earth and the sun
determine the net torque on the 28-m-long uniform beam shown in the figure all forces are shown figure 1calculate about
determine the power supplied to the 80 omega resistor in the circuit shown in the drawing r1 40 omega r2 80omega and
1 determine the resistance of a 75-w lightbulb connected to its proper source voltage of 110 v express your answer to
determine the speed of light from a helium-neon laster as it travels through carbon tetrachloride the wavelength of
determine the speed wavelength and frequency of light from a helium-neon laser as it travels through plexiglas the
determine the magnitudes of the currents in each resistor shown in the figure figure 1 the batteries have emfs of
determine the minimum force p applied to the wedge required to start raising the crate the crate weighs 154 lb and the
a determine the power dissipated by the 20 omega resistor noter140 ohmr2 5 ohm and v12 vb if the voltage from the
determine the work done by the rope on the 10kg pendulum bob which weighs 10n as the pendulum bob swings down from its
the diagram below illustrates light beams resulting from pointing a laser beam towards a liquidcalculate the index of
the diagram below represents our sun uranus and neptune is a position where uranus is between the sun and neptune the
the diagram shows a block of mass m resting on a smooth inclined surface of a 30 degree wedge of mass m which in turn
the diagram above shows three different fuids that have been added to a glass u-tube that is open to the air the fuids
in the diagram below a street light m is hung from a horizonal beam the beam is supported by a pin at p and by the
the diameter of a locomotive wheel is 1067 mm when measured at zero degrees celsius calculate the difference in the
a diffraction grating has 580 linesmm a line is the same thing as a slit light is shone through the grating and onto a
a dipole consists of a positive and negative charge seperated by 12cm the charges are -15nc and 15nc what is the
a dipole with dipole moment 22 ncm is oriented at 39o to a 46 mnc electric fieldwhat is the magnitude on the dipolehow
a dipole lies on the y axis and consists of an electron at y1 070nm and a proton at y2 -070nm a find the electric
a dipole moment is placed in a uniform electric field oriented along an unknown direction the maximum torque applied to
a you direct a 135 mw laser beam toward a surface at normal incidence the surface is made of a material that completely
1 a disc of moment of inertia 18 kgm2 is rotating at a constant angular velocity of 32 rads-1 another disc of moment of