A city is going to build a small power plant to supply extra electricity. Which of the following is a cost associated with using
2 answers:
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Answers:
a) 222.22 m/s
b) 800.00 km/h
Explanation:
The speed of a wave is given by the following equation:
Where:
is the speed
is the frequency, which has an inverse relation with the period
is the wavelength
Solving with the given units:
This is the speed of the wave in km/h
Transforming this speed to m/s:
This is the speed of the wave in m/s
Answer:
Hoop.
Explanation:
The angular acceleration performed at a given torque:
The moments of inertia of each element are described below:
Hoop
Solid sphere
Flat disk
Hollow sphere
The greater the moment of inertia, the greater the torque to obtain the same angular acceleration. Therefore, the hoop requires the largest torque to receive the same angular acceleration.