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When in orbit, a communication satellite attracts the earth with aforce of 19.0 kN and the earth-satellite gravitational potential energy (relative to zero at infiniteseparation) is -1.59 multiplied by 1011 J.
(a) Find the satellite's altitude above the earth'ssurface.
m
(b) Find the mass of the satellite.
kg
A pipe open only at one end has a fundamental frequency of 282Hz. A second pipe, initially identical to first pipe, is shortened by cutting off a portion of the open end.
Prior to launching a stone from a sling, a Bolivian native whirls the stone at 3.0 revolutions per second around a circle of radius 0.75 m. What is the angular momentum of the stone relative to the center of the circle
A stationary motion detector sends sound waves of 0.7 MHztoward a truck approaching at a speed of 55.0 m/s. What is the frequency of the waves reflected back to the detector
An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of 3.50 mT. The angular momentum of the electron about the center of the circle is 3.00 10-25 J·s. (a) Determine the radius of the circular path. cm (b) ..
question a wire has a current density of 17 amm2. if the drift velocity is 4.8times10-8 ms how many free electrons does
Our Sun has a radius of 7 x 10^8 meters. From the amount of thermal energy we receive on Earth, determine the average surface temperature of the Sun
A large capacitance of 1.20 mF is needed for a certain application. Find the maximum charge that can be stored
a charge q is transferred from an initially uncharged plastic ball to an identical ball 17 cm away. the force of
an astronomical telescope has an objective lens with a focal length of 102 cm and an eyepiece with a focal length of
Determine the force of gravity between earth (mass =6.0x10^24kg) and the moon (mass= 7.4x10^22kg). The average earth-moon distance is 3.8x10^8m.
The average kinetic energy per molecule of an ideal gas with originally Ni=1000 molecules is Kavg=500J. What is the final number of molecules Nf after this process
a uniform electric is produced by two parallel plates separeated by 3 cm and with a battery of 36 v across them, find the speed of the electron and proton when they reach the charged plates
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