A 4.2 kg rifle shoots a 0.05 kg bullet at a speed of 3.00 * 10^2 m/s. At what speed does the rife recoil?

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Physics is a scientific subject in the science of today briefly define what is physics and state any one branch of it that you know

Please answer the questions 3,4 about physics calculus. Thank you.

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Hi, PLEASE DO NOT ACCEPT if you don’t know advanced calculations involving general and special relativity.

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7. What is the volume occupied by 0.223 mol of helium gas at a pressure of 1.00 atm and a temperature of 320 K ? V = 8. A cylinder contains 12.8 L of air at a total pressure of 45.2 psi and a temperat
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