State whether the following statements are true or false. If flase, correct it.
1) Force has magnitude as well as direction.
2) Friction does not produce heat.
3) The unit of frequency is decibel.
4) The copper rod can be charged by friction, if held by hand.
5) The angle is sometimes equal to angle of reflection.
6) Mars is also called as the red planet.
7) Seminal vesicles is a part of female reproductive system.​
Answers: 1
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State whether the following statements are true or false. If flase, correct it.
1) Force has magni...
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