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A star radiates energy at the rate of 2.2 1026 W. Assume that this energy is produced by a reaction whose net result is the fusion of 4 H nuclei to form a singler He nucleus and the release of 25 MeV of energy that is radiated into space. Calculate the star's loss of rest mass per second.
A glass fiber of index 1.50 is used to transmit light but is submerged in water of index 1.33. What is the critical angle for light to stay inside the optical fiber
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1 for a particular transformer used in a CD player is 9:42. find the rms output voltage of the transformer
This technique is capable of detecting magnetic fields as weak as 1.0 10-15 T. Model the neuron as a long wire carrying a current and find out the current it must carry to produce a field of this magnitude at a distance of 4.7 cm from the neuron..
An 8.54kg block of ice at 0 %u2218C is sliding on a rough horizontal icehouse floor (also at 0 %u2218C) at 15.2m/s, What is the maximum amount of ice that will melt
A set of charges are arranged in the following way: a 10.0 nC (nanocoulomb) positively charged particle sits at the origin of a coordinate system, Sketch a diagram of this charge configuration
An object, at the top of a very tall building, is released from rest and falls freely due to gravity. Neglect air resistance and calculate the distance covered by the object between times t1 = 5.57 s and t2 = 7.59 s after it is released.
A pitcher throws a fastball horizontally at a speed of 150 km/h toward home plate, 18.4m away. If the batters combined reaction and swing times total 0.37s, how long can batter watch the ball after it has left the pitcher's hand before swinging? In t..
Use the binomial expansion to find an approximate expression
Two conductors are joined by a long copper wire. Thus A) each conductor must be at the same potential. B) no free charge can be present on either conductor. C) each conductor carries the same free charge.
A computer disk is 8.0 in diameter. A reference dot on the edge of the disk is initially located at the disk accelerates steadily for 0.50, reaching 2000.
A straight ladder is leaning against the wall of a house. The ladder has rails 3.20 m long, joined by rungs 0.530 m long. What should be the thickness of the rock
An open container holds 0.550 kg of ice at - 15.0 degree celsius. The mass of the container can be ignored. After how many minutes does the ice start to melt
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