What is the mass in grams of 3.7 moles CH4

Why did southern business leaders want to increase the number of slaves

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Explain that newton first law,second law and third law of motion?