In turns out that for b), instead of using (.27^2 -0.09^2), we have to use (.27^2-0.18^2).
A 0.53-kg mass is attached to a horizontal spring with k = 106 N/m. The mass slides across a frictionless surface. The spring is stretched 27 cm from equilibrium, and then the mass is released from rest. (a) Find the mechanical energy of the system. (b) Find the speed of the m...
1s2 2s2 2p6 3s2 3p5 - To get to +7 the chlorine atom loses its seven valence electrons, but it only has room for one more in the p sublevel to get to 1.
the answer is C
thank you Bob!
1) Calculate the mass of NaHCO3 required to generate 50mL of CO2, at 1 atm. pressure and 25*C. Do I need to use PV=nRT? where for n it will be both my n's from C and O2 together? 2) Solubility of CO2 in water at 25* is 0.145g in 100mL. Assuming the solubility of CO2 is the...
P = a + b + c Where P is perimeter a, b and c are all 3 sides
you need more information than that, at least a mass or an acceleration because Newton's second law: F=ma
an object going around a corner is affected by centripetal acceleration.
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