Express 0.0015671 kg to three significant figures
What will be an ideal response?
0.00157 kg
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When you drag a toy teddy bear along the floor by a force that is parallel to the floor, the magnitude of the force of friction
a. is independent of velocity or acceleration. b. increases when the velocity increases. c. is proportional to the acceleration. d. decreases when the force parallel to the floor increases. e. increases when the force parallel to the floor increases.
Which of the following molecules would probably be isolated closest to the bottom of a fractionating tower at a refinery?
A) C4H10 B) C8H18 C) C10H22 D) C20H42 E) C40H82
First Law of Thermodynamics: A cylinder contains 10 moles of an ideal gas at a temperature of 300 K. The gas is compressed at constant pressure until the final volume equals 0.77 times the initial volume. The molar heat capacity at constant volume of the gas is 24.0 J/mol ? K and R = 8.31 J/mol ? K . How much heat is absorbed by the gas during this process? (R = 8.31 J/mol ? K)
A. -22 kJ B. -17 kJ C. 22 kJ D. 17 kJ E. -5.7 kJ
Discuss a similarity and a difference between the spectrum formed by a diffraction grating (a large number of slits) and that formed by just a double slit
What will be an ideal response?