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How many pounds of force must a guardrail's top rail be able to withstand?
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What type of electromagnetic wave is used in security pens? a. x-rays c. microwaves b. visible light d. ultraviolet radiation select the best answer from the choices provided
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What are similarities and differences between refraction, reflection, diffraction and absorption?
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The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.
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Why should the wavelength scale of spectroscope be calibrated
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How many pounds of force must a guardrail's top rail be able to withstand?...
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