2. In the neuromuscular junction, acetylcholine... diffuses across the synaptic cleft and binds to acetylcholine receptors on the postsynaptic muscle fiber. is actively transported across the synaptic cleft and binds to acetylcholine receptors on the postsynaptic muscle fiber.. In the neuromuscular junction, acetylcholine... diffuses across the synaptic cleft and binds to acetylcholine receptors on the postsynaptic muscle fiber. is actively transported across the synaptic cleft and binds to acetylcholine receptors on the postsynaptic muscle fiber.
B. 10,400 N D. 399 N. C___ 2. If a car is moving to the left with constant velocity, one can conclude that. A. there must be no forces applied to the car. B. the net force applied to the car is directed to the left. C. the net force applied to the car is zero. D. there is exactly one force applied to the car. A___ 3.
Centripetal acceleration is the idea that any object moving in a circle, in something called circular motion, will have an acceleration vector pointed towards the center of that circle. This is true even if the object is moving around the circle at a constant speed. Centripetal means towards the center. Even an object moving at a constant speed around a circle won't have a constant velocity. This is because velocity is a vector -- it has both speed and direction. An object moving in a circle is constantly changing direction, so it is constantly changing velocity.