Ahelicopter flies horizontally at 100 km per hour. it takes 20 seconds for the helicopter to fly from directly overhead to being at an angle of elevation of 60 degrees. find the height of the helicopter above the ground.

When creating passwords for secure accounts, which of the following rules should you apply? a.use personal information that is easy to remember.use a variety of letters, numbers and characters.use a sequence or pattern of numbersd.use the same password for all accounts