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

Why do cars need a cooling system in conjunction with the engine

In most cases, a multicellular organism is not an exact copy of its parents because it

Which of the following must an engineer take into account when designing a roller coaster? the rates at which the roller coaster will change directions the mass of the roller coaster the total mass of the people that will ride the roller coaster the

Ice cube is dropped into a glass of water. Describe the motion of the ice cube and explain why it moves this way

A 75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be replaced by a high - efficiency motor that has an efficiency of 95.4 percent. the motor operates 4368 hours a year at a load factor of 0.75.

justin pushes basket of toys with 50N of force for 3 meters in 100 seconds. how much work did he do on the basket

In general, what can be said about metals.

If the moon did not have an atmosphere what would happen to it

Density is calculated by: dividing volume by mass dividing mass by volume multiplying mass and volume multiplying mass and gravity

The Burj Khalifa in Dubai is the tallest building in the world at about 828 m. A daredevil climbs to the top of the building and sees the the Boulevard Plaza 2 (141 m tall) about 300 m away.