句子改错练习：10句语法错误修正

Action and reaction are opposite and equally balanced.
The moon rotates rather slowly, so one day on the moon is as long as two weeks on Earth.
Computers may be classified as analog or digital.
It is evident that a well-lubricated bearing turns more easily than a dry one.
The upward force is equal to the downward force, so the balloon stays at the same level.
In radiation, thermal energy is transformed into radiant energy, which is similar in nature to light.
Vibrating objects produce sound waves, with each vibration producing one sound wave.
The rotation of the Earth on its own axis causes the change from day to night.
It has been proved that induced voltage causes a current flow in the same direction as the force producing it.
The resistance was very high, so the current in the circuit was very low.