A. is a neutral substance a pH of 7 describes something of neutral pH where anything less than 7 is an acid and higher is a base
The statement is false. Balanced forces can NOT change the speed OR direction of an object's motion. (See Newton's #1 law of motion.)
The horizontal change between two points on a graph is called the 'run'.
The vertical change between two points is called the 'rise'.
Answer:
Explanation:
Concave lens also called as diverging lens i.e. it diverges ray of light coming towards it.
Concave lens is thicker at the edges and thinner at the center.
Concave lens formed the virtual image of the object i.e. it cannot be trace on screen. This lens is used to treat the nearsightedness or myopia in which a person is unable to see the far object clearly.
The two competing forces that keeps earth orbiting the sun is gravity and inertia