The decay of a radioactive material has a count rate is 2000 decays/min. Four hours later, the decay rate is 500 counts/min. What is the half-life?
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A: Given: Number of moles of deuterium n=198.8 mol. Percentage by number of hydrogen N=0.01500%.
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Q: Determine the current through the tangent galvanometer if the deflection obtained is 45°.
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Q: O Question 1 Prove the following commutation relationships: (a) [4 + B , Ĉ|= [Â, Ĉ + [B, Č). (b) [4,...
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Q: Y = 3 cos 100x (2t - x), the value of is (a) 4 cm (b) 6 сm (c) 2 сm (d) 1 сm
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A: Given, vA=3vBmA=1200mBqA=-1.5qB
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Q: R = 2î + 3ĵ – 6k, R2 = 2î – mỹ – 8k and R3 = nî + 4.5) – 9k - Explain why R1 & R2 are not parallel t...
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Q: 9. A particle of mass 0:3 kg is subjected to a force F=-k x with k = 15 N/m. What will be its initia...
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A: The planet is very abundant in oxygen which i followed by carbon and then the nitrogen.
Q: Give the basic assumption of the Langmuir model
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Q: Two charge particles, A and B, are released from rest. Charged particle A is released from location ...
A: Given, Two charge particles A and B mA=1200 mBvA=3vBqA=-1.5qB
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Q: When a potential difference of 112.8 V is applied between the ends of a 9.77 m long wire, the curren...
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Q: Would adding another capacitor in series to an RC circuit increase, decrease, or not change its time...
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Q: I F = 102 N. A= 120 N and P 86 N, determine the maghitude and coordinate deection angles of the resu...
A: Given F1 = 102 N F2 = 120 N F3 = 86 N F4 = (150 k) N
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