true
True
i think its true
Yes.
otherwise the force would be unequal and pointless because nothing will be acting against it and everything would be stationary
True
false
2 pairs
False. While many skeletal muscles do work in antagonistic pairs (e.g. biceps and triceps), not all skeletal muscles function this way. Some skeletal muscles work alone or in synergy with other muscles to produce movement.
True.
False. It could be an irregular pentagon.
True
False. A pulley system can change the direction of the force applied, but it does not always result in the output force being in the opposite direction of the input force. The direction of the output force depends on the configuration of the pulleys in the system.
False. There are 6 pairs of smaller congruent triangles and two pair of larger ones.
false
Tautologies are always true.
false
false