if two variables have a non-related relationship and one of the variables is changed, how will the other variable change?
increase
decrease
no change
increase and decrease in a regular pattern

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

70 give a real life example showing how sensory neurons work with the motor neurons

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?