The engine of a model airplane must both spin a propeller and push air backward to propel the airplane forward. Model the propeller as three 0.30-m-long thin rods of mass 0.040 kg each, with the rotation axis at one end.
What is the moment of inertia of the propeller?
How much energy is required to rotate the propeller at 5800 rpm? Ignore the energy required to push the air.
Answers: 1
Other questions on the subject: Physics
Physics, 22.06.2019 15:10, Bgreene2377
Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k
Answers: 1
Physics, 22.06.2019 23:30, isabel2417
Avector a⃗ has a length of 8.6 m and points in the negative x direction. find the x component of the vector −3.7a⃗ .
Answers: 1
You know the right answer?
The engine of a model airplane must both spin a propeller and push air backward to propel the airpla...
Questions in other subjects:
Business, 24.10.2019 02:10
History, 24.10.2019 02:10
Mathematics, 24.10.2019 02:10
Arts, 24.10.2019 02:10
Mathematics, 24.10.2019 02:10
