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the antenna on a cordless phone radiates microwaves at a frequency of 70 ghz what is the maximum length of the antenna
a 7 meter long wire is strung less or more horizontally in an east-west direction and a current of13 amp is sent from
assuming your skin temperature is 372degc and the temperature of your surroundings is 207degc decide the length of time
compton used photons of wavelength 00711 nanometera find the energy of these photonsb find the wavelength of the
a constant 370 amp current moves along a straight wire that is perpendicular to a 220 t magnetic field if the wire is
two identical objects are placed in a room at 27degc object 1 has a temperature of 83degc and object 2 has a
the double star system yasmin is observing is 42 1016 m from earth and the two stars are separated from each other
a typical household uses 500 kwh kilo-watt-hours note the kwh works out to be units of energy if you think about it of
a spring has a force constant k18nm if its compressed 50 centimeter from its original equilibrium length determine how
two identical wires are horizontal and run parallel to each other they each carry the similar current i the top wire is
a capacitor is discharged through a 100 ohm resistor the discharge current decreases to 23 percent of its initial value
an object acted on by three forces moves with fix velocity one force acting on the object is in the positive x
unpolarized light passes during two polarizers in turn with polarization axes at 58deg to each other what is the
a 270 kilogram block is connected to an empty 100 kilogram bucket by a cord running over a frictionless pulley the
two point charges are placed on the x-axis the first chargeq1 800 nc is placed a distance 160 m from the origin along
consider material with a frequency dependent refractive index nnomega calculate the group velocity in this
the green line of gaseous mercury at 546 rm nm falls on a double-slit apparatus if the fifth dark fringe is at 0145circ
a laser emitting light of wavelength 534 nanometer is incident on a diffraction grating find the maximum number of
sigma 56696 times 10minus8 wm2 middot k4 a house has a surface temperature of 44c the surrounding temperature outside
refraction of light forms the basis for detailed computation of how a lens works show by construction of a simple ray
an escalator is needed to carry 80 passengers per minute a vertical distance of 70 meter mass of each passenger is 65
a wire loops of radius 030 miles so that an external magnetic field of magnitude 040 t is perpendicular to the loop the
a jet flies from base camp to lake a 330 kilometer away in the direction 200 degree north of east after dropping off
a 140 v battery is connected in series by a resistor and an inductor the series circuit has a time constant of 600
a 13 kilogram carton slides down a long frictionless incline of angle 30 degree it starts from rest at time t 0 at the