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(a) Find the total power radiated into space by the Sun, assuming it to be a perfect emitter atT = 5500 K. The Sun's radius is 7.0? 108 m.
(b) From this, determine the power per unit area arriving at the Earth, 1.5? 1011 m away.
For this problem, you will calculate the activity of a radioactive substance at different times. Determine the initial activity in curies
A 9000pF capacitor holds plus and minus charges of 1.35×10?7C . What is the voltage across the capacitor
A 115-? resistor, a 64.6-mH inductor, and a 190-?F capacitor are connected in series to an ac generator. At what frequency will the current in the circuit be a maximum
two stationary positive point charges charge 1 of magnitude 3.20nc and charge 2 of magnitude 1.50nc are separated by a
Four identical point charges (+3.17nC) are placed at the corners of a rectangle, what is the potential at the geometric center of this rectangle
q1. calculate relation between radiation power if sphere with temperature 1000k and diameter 100m and smother sphere
A battery with an emf of 32 volts and internal resistance of 22 ohms is connected to a 25 watt light bulb. Calculate the acual terminal voltage across the battery
The nucleus of a 125Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q =+54e. What is the proton's acceleration
kansas city deck supply a small residential builder of decks is considering purchasing a lumber supplier midwest pine.
A ray of light is incident on glass-air interface at the critical angle of 41 deg., what is the refracted angle, What is the strength of a lens which forms an image 24 cm from the lens when the object is 40 cm away
A man pushes a wooden crate on wooden floor. The direction of the force is 30o downward relative to the horizontal, How much force does he use in order to maintain a constant speed
The ground state for a single valence electron of a rubidium atom (Z=37) is 5s and its energy is –4.18 eV. The valence electron is excited into the 5g state. We want to determine the energy of this 5g electron. Assume that the wave function for th..
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