Retired community college professor
No questions with score of 5 or more
How can I find the surface area of a normal chicken egg?
Two students clean 5 rooms in 4 hours. How long do 40 students need for 40 rooms?
Starting a liquid fuel engine in zero gravity
Airplane with banner in a windy day
What is the probability of rolling at least one $7$, $11$, or doubles in an experiment consisting of two rolls?
How does a launch vehicle control its trajectory during the first stage?