Physics, 05.11.2020 19:30 student8248
Remember that a Free-Body Diagram shows only the pertinent forces acting on an object: however, when solving physics problems it is often necessary or beneficial to resolve these vectors into components, usually horizontal and vertical. For our purposes, all the forces will be drawn as if they act on the center of mass of the object. Column one contains the physical representation of a situation. In the second column to the right, draw the free body diagram assuming the forces act on the blank dot provided then resolve these vectors into any horizontal and/or vertical components. Remember the components are not a part of the FBD as prescribed on Advanced Placement Exams but are useful in mathematically solving problems related to forces.
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Physics, 21.06.2019 21:00
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
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Physics, 22.06.2019 07:50
Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?
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Physics, 22.06.2019 21:30
Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.
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