COSMIC PERSPECTIVE FUNDAMENTALS(LL+CODE
COSMIC PERSPECTIVE FUNDAMENTALS(LL+CODE
3rd Edition
ISBN: 9780135257296
Author: Bennett
Publisher: PEARSON
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Chapter 10, Problem 16SEQ
To determine

The reason for the principle of conservation of angular momentum to make it difficultto fall into a black hole.

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PLEASE be clear in your answer since the last time I posted was incorrect, and only answer part b, thanks.
ONLY ANSWER 3 AND USE OTHER QUESTIONS FOR CONTEXT   Suppose we have two sources of light, a deep red one with wavelength 700 nm, and a violet one with wavelength 400 nm. Both produce the same optical power, delivering 1 milliwatt (10−310−3 watts) of energy per second per square centimeter to a metal target with an area of 1cm2 located 1 meter from the sources.   1. Which color would deliver more photons each second? All the photoelectrons that are produced from the light are presumed to be collected by another electrode and we determine the current in amperes using a circuit and an "ammeter", that is, some device that can give a precise quantitative measure of the current. Such a device might use the magnetic field generated by the current, or the voltage produced when the current flows across a resistance. 2. If the work function of the surface is 2 eV, will we see a current with both colors, one color, or neither one? If so, how much (in amperes), or if not, explain. 3. If we now…
Please answer the question and its subquestions entirely! This is one question with two subquestions. According to the official Bartleby guidelines, I am alowed to have up to two subquestion!   1) When an ice-skater spins and increases her rotation rate by pulling her arms and leg in, what happens to her kinetic energy?     It stays the same.     It increases.     It decreases.   a) A 0.400 kg mass, sitting on a horizontal frictionless surface, is attached to the end of a 0.750 m string. It is whirled around in a circular horizontal path. If the maximum tension that the string can withstand is 450 N, then what maximum velocity can the mass have if the string is not to break?     375 m/s     22.4 m/s     19.4 m/s     29.0 m/s b) A grinding wheel with a moment of inertia of 2 kg-m 2 has a 2.50 N-m torque applied to it. What is its final kinetic energy 10 seconds after starting from rest?     312 J     237 J     156 J     106 J
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