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Helium gas with a volume of 2.60 L, under a pressure of 1.30atm and at a temperature of 41.0 degrees, is warmed until both pressure and volume are doubled. a)What is the final temperature? b)How many grams of helium n are there? The molar mass of helium is 4.00g/mol.
Q. Collector current I c =20 mA and base current I b = 50 A. Find current gain β of a transistor. β = I C / I B = 20 X 10 -3 / 50 X 10 -6 = 400
what are the shapes of inorganic molecules?
What is the mass ms of one 294Uus atom, in SI units? Include the error bars in your answer, using 1 atomic mass unit 1u = (1.66053892 ± 0.00000007) × 10-27 kg.
A Surfer sits on his board waiting as waves go by to catch a ride back to shore. Assuming the waves can be modelled as a sine wave given by h (x,t) = 1.75 sin (0.03 Πx - 0.15 Πt) [
explain frequency response curve
Proton-neutron hypothesis
Infra-Red (IR) Detectors: An IR detector has an impedance of Z= (400+j200) ? . During design tests the detector current is measured as 4 µA. What is the output volta
Q. Give the basic assumptions made in free electron model of solid. OR Write down basic postulates of Sommerfield's free electron gas model. Show that the number of ene
Q. Give any three properties of electric lines of force. Properties of lines of forces: (i) Lines of force begin from positive charge and terminate at negative charge. (ii
It having of a Cu plate coated with a thin layer of cuprous oxide (Cu2O). On this plate is laid a semi transparent thin film of silver. When light fall, the electrons emitt
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