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Question: A woman has a mass of 55kg.
Part A: What is her weight while standing on earth? Express your answer to two significant figures and include the appropriate units.
wEarth =
Part B: What is her mass on the moon, where g=1.62m/s2 ? Express your answer as an integer and include the appropriate units.
mMoon =
Part C: What is her weight on the moon? Express your answer to two significant figures and include the appropriate units.
wMoon =
a potential difference is applied between the electrodes in a gas discharge tube. in 2.0 s 3.1 x 1016 electrons and 1.1
A painter (m=70 kg) is standing a distance of 0.6 m from the top of a ladder (mass 40 kg and length 2.5 m). Find the conditions for static equilibrium of the ladder with the painter on top
a 420-w heating coil designed to operate from 110 v is made of nichrome wire 0.520 mm in diameter. assume ? 1.50 10-6
Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high-many times higher than the wind speed. At the tip of a blade, what is the centripetal acceleration
The static friction between wall and rod-end is the same in magnitude as the force of static friction between floor and rod-end. What normal force does the wall exert on the rod?
A 3.0 kg block of silver is completely immersed in water. calculate the mass of water displaced by the silver block
A disk of radius1m and to mass 2 kg is suspended from a point on its circmfrences where it free to rotate. The value of g can be taken to be 10. What is the frequency of small oscillation, the wall which is against the ladder with a force of:
An electron moves with velocity v = (3.79E+4i - 5.79E+4j) m/s in a magnetic field B = (-0.905i + 0.559j) T. What is the magnitude of the force on the electron
if the kinetic energy of a neutron confined inside a cubic box is 10 mev in its ground state calculate the size of the
In a closed piston-cylinder device, an isothermal expansion of anideal gas from 1.5 m3 to 4.7m3 occurs at a temperature of 99oC. How much heat is need to complete the process
A long straight wire has fixed negative charge with a linear chargedensity of magnitude 3.6 nC/m. The wire is to be enclosedby a coaxial, thin-walled, nonconducting cylindrical shell ofradius 1.5 cm.
A 140 g air-track glider is attached to a spring. The glider is pushed in 12.00 cm and released. A student with a stopwatch finds that 9 oscillations take 10.0 s.
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