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As a solar type star is running out of nuclear fuel for the final time, it casts off its outer layers into an expanding cloud of gas surrounding the star's collapsing core. Briefly, the cloud of gas forms a glowing nebula around the hot core. This nebula is called...
a) A supernova remnant
b) A planetary nebula
c) A Bok globule
d) A asymptotic giant nebula (AGN)
One hundred turns of insulated copper wire are wrapped around an iron core of cross-sectional area 0.100 m2. find the average current in amperes that flows through the resistor
you are trying to lift a stack of books off the table. the stack of books has a mass of 15 kg. what minimum upward force must you exert on the books
a charge of -3.89c is fixed at the center of a compass. two additional charges are fixed on the circle of the compass
A tuning fork with a frequency of 320.0Hz and a tuning fork ofunknown frequency produce beats with a frequency of 4.5Hz. What is the frequency of the other tuning fork
The supersonic low altitude missile (vought SLAM) had an atomic engine operating at 1500 degrees celsius. What is the maximum efficiency possible
a 1.0 x 10-9 c charge is at the origin and a -1.00 x 10-9 c charge is 4.1 m to the right on the positive x-axis. the
In her bathroom, Mindy has an overhead heater that consists of a coiled wire made of nichrome that gets hot when turned on. What current does the wire carry
Two neutrons are in an infinite square well with L = 2.0 fm. What is the minimum total energy that the system can have? ( Neutrons, like electrons have antisymmetric wave functions ignore spin).
Your spaceship lands on an unknown planet. You drop a 1.50 kg wrench from 5.50 m above the ground, What is the mass of the planet, in kilograms
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. find the tension in the tightrope
A mass m of a metal with heat capacity cm at initial temperature TM is added to the volume V of a liquid with density p, find the final temperature of the system
A 3100 kg cannon is mounted so that it can recoil only in the horizontal direction. Calculate the magnitude of its recoil velocity when it fires a 14.0 kg shell at 480 m/s at an angle of 20.0° above the horizontal
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