Two identical masses are connected to two different flywheels that are initially stationary. flywheel a is larger and has more mass, but has hexagonal sections where material has been removed. the attached masses are released from rest and allowed to fall a height h. which of the following statements about their angular accelerations is true? a. the angular acceleration of the two flywheels is different but it is impossible to tell which is greater. b. the angular acceleration of flywheel a is greater the angular acceleration of flywheel b is greater. c. not enough information is provided to determine. d. the angular accelerations of the two flywheels are equal.
a transformer is used to increase or decrease a voltage. but it has to be an ac voltage, or the transformer doesn't work.
4 meters is the final ! : )
average speed = (total distance covered) / (time to cover the distance)
total distance = (80m) + (125m) + (45m) = 250 meters
overall time = 10 minutes
average speed = (250 meters) / (10 minutes)
average speed = 25 meters/minute
since we're only looking for average speed and not velocity, we don't care about any of the directions, and we don't need to calculate mary's displacement.