Thrust-to-weight ratio = 1.8 → Thrust = 1.8 × 44,100 = <<1.8*44100=79380>>79,380 Newtons
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- An Oregon aerospace engineer designs a propulsion system with a thrust-to-weight ratio of 1.8. If the vehicle weighs 4,500 kg and gravity is 9.8 m/s², what is the minimum thrust in newtons required for liftoff?
- Weight = mass × gravity = 4,500 × 9.8 = <<4500*9.8=44100>>44,100 Newtons
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- A Chicago public health researcher finds that air pollution exposure increases childhood asthma risk by 15%. In a school of 800 children, 30% are regularly exposed. If baseline asthma rate is 8%, how many exposed children are expected to develop asthma due to pollution?
- Exposed children: 30% of 800 = 0.30 × 800 = <<0.30*800=240>>240
