Which body system determines motor fitness skills by sending and receiving messages to and from the working muscles?

A) circulatory system

B) endocrine system

C) muscular system

D) nervous system

What is energy at motion called

Which statement is true according to hooke's law? a. as the force on a spring increases, the spring's length remains unchanged. b. the distance a spring stretches has nothing to do with how much force is applied to it. c.

Question 2. Joe has an idea to cut a bar magnet in half so that he can have one magnet with a north pole and one magnet with a south pole. What is wrong with this idea? A B. C. D. It is impossible to cut a magnet in half.

True or false? In general, the physical properties of nonmetals are similar to the properties of metals.

What is Maria's hypothesis for the experiment? State why Maria think this is a good hypothesis

The heat energy released or absorbed by a chemical reaction is generally determined by the difference between the energy that

A woman with a mass of * kg is standing on the rim of a large disk that is rotating at an angular velocity of 0.550 rev/s about an axis through its center. the disk has a mass of * kg and a radius of * m.

12. Too much socializing in the workplace can

What magnetic field strength is needed in each magnet to steer protons around the ring with a speed of 4.5 * 107 m/s? Assume that the field is uniform inside the magnet, zero outside.

The parts of a longitudinal wave that are closet together?