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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the mass conservation equation state about inflow and outflow?
💡 Hint: Think about conservation principles in a closed system.
Question 2
Easy
Define momentum flux in simple terms.
💡 Hint: Consider the flow of water in terms of amount and speed.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the mass conservation equation state?
- Inflow equals outflow
- Inflow is less than outflow
- Inflow is greater than outflow
💡 Hint: Think about how fluids behave in a closed system.
Question 2
True or False: Thrust is the force that helps a spacecraft move forward.
- True
- False
💡 Hint: Consider how rockets operate.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A spacecraft with a mass of 15000 kg descends at 600 m/s. If it expels 90 kg/s of fuel at 2500 m/s for 10 seconds, calculate the change in velocity.
💡 Hint: Consider thrust's effect versus gravitational pull while calculating.
Question 2
Analyze the implications if the thrust only begins after the spacecraft has fallen for 15 seconds. What changes upon activation?
💡 Hint: Reflect on how time impacts momentum and force balance.
Challenge and get performance evaluation