we sent you a message with a link. By clicking on the link, you will automatically log in to your profile.
Attention! The connection is valid for 15 minutes. The message is sent only if the user with the given username (e-mail address) exists in the database.
How many revolutions per minute can the rotor of a helicopter make so that the speed of the edge of the rotor blades is less than the speed of sound (340 ) if the length of the blades is 6 m?
The detailed solution steps are locked. Click on the blue button to unlock them.
To ensure the proper functioning of the website, OpenProf uses cookies that do not store personal data. By continuing to use the website, you agree to cookies. Tell me more »