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Q1
\(log_5 {\sqrt {5 \sqrt {5} \sqrt {5....∞}}} = ?\)
Q2
\(log_x (2x^2-9)=2 \) find \(x\) ?
Q3
\(_{10}log_{100}^{16} = ?\)
Updated Thu, 13 Dec 2018 02:36 pm
Answer the question 1.4
Coulomb's law for electrostatic force between two point charges and Newton's law for gravitational force between two stationary point masses, both have inverse-square dependence on the distance between the charges/masses. (a) Compare the strength of these forces by determining the ratio of their magnitudes (i) for an electron and a proton and (ii) for two protons. (b) Estimate the accelerations of electron and proton due to the electrical force of their mutual attraction when they are 1 \(\overset{\circ}{\mathrm {A}}\) (= \(10^{-10}\) m) apart? \((m_p = 1.67 \times 10^{-27}\ kg, m_e = 9.11 \times 10^{-31}\ kg)\)
Updated Wed, 12 Dec 2018 04:17 pm
