A rocket of mass 4.5 x 10^4 kg is in space where gravity is negligible. If the rocket expels 150.0 g of hot gasses with a speed of 2.0 x 10^3 m/s, how much speed will the rocket gain?

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# A rocket of mass 4.5 x 10^4 kg is in space where gravity is negligible. If the rocket expels 150.0 g of hot gasses with a speed of 2.0 x 10^3 m/s,

A rocket of mass 4.5 x 10^4 kg is in space where gravity is negligible. If the rocket expels 150.0 g of hot gasses with a speed of 2.0 x 10^3 m/s, how much speed will the rocket gain?