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A student calculates the acceleration due to gravity and determine it to be 9.72 m/s2. What is his percent error, if the accepted value is 9.81 m/s2? Q. You estimate that the maximum error of an equal-arm balance is 0.01 g. What is the possible percent error when you use this balance to calculate each of the following masses?
(a) 700 g
(b) 3 kg
(c) 20 g
(d) 1.0 g
An atom which has lost one electron would be: (1) Negatively charged () Positively charged (3) Electrically neutral (4) Carry double positive charge Ans: Elec
For the circuit shown in Figure , verify the value of V1. If the total circuit resistance is 36Ω. Determine the supply current and the value of resistors R 1 , R 2 and R 3
derivation by calculas method of Snth = (Sn – Sn -1) = u + a/2 (2n – 1)
How to calculate n factor of disproportion reaction? Total number of electron change divided by no. of moles of reactant This is conventional method Total electron chan
CO has same electrons as or the ion that is isoelectronic with CO is: (1) N + 2 (b) CN - (3) O + 2 (4) O - 2
why phase is defined only for periodic motion ?
Explain the formula of the Stefan law. STEFAN'S LAW: P = σ AT 4 Here: P = Power radiated into W (J/s) σ = Stefan's Constant 5.67 x 10 -8 W m -2 K -4 A = Su
What is hall Effect? Derive an expression for it.
Hydrogenation reactions are facilitated by the use of a transition metal catalyst such as Ni or Pt. Predict the signs of ΔH, ΔS and ΔG when hydrogen gas is adsorbed onto the surfac
1. Cell growth. if V is the volume of a spherical cell, then, in certain cell growth or for some fetal growth models, the rate of change of V is given by dV/dt =kV2/3, where k
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