Amachine gun fires 10 rounds per second the speed of the bullets is 300 m/s. what is the distance in the air between the flying bullets ?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.