7. A 1 cm long screw that is 62.5% efficient in pulling a 500 N board to a wall when
the carpenter used 80 N of force in turning it. What is the thread length of the
screw?

In which specialized organ of the plant would these cells most likely be found

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.

When ash and dust begin to settle on the ground, they eventually become compacted by