24. A, natural ph scale for it not to be acidic is 7-8
25. A, not sure about this one
26. A, looked it up
27. A, because it has to be shaken up to make the mixture appear and taste more combined.
28. D, i just guessed
29. D, that answer is stupid so it is the answer because it said not a property
30. A, looked it up
Answer:
hope it helps for you
Explanation:
A machine is an object or mechanical device that receives an input amount of work and transfers the energy to an output amount of work. For an ideal machine, the input work and output work are always the same. The six common simple machines are the lever, wheel and axle, pulley, inclined plane, wedge, and screw.
Answer:
Angle of incidence
Explanation:
The diagram shows the reflection of a light ray.
When a light ray undergoes reflection:
- The incident ray, the reflected ray and the normal to the surface all lie in the same plane
- The angle of reflection is equal to the angle of incidence
The two angles are defined as follows:
- The angle of incidence is the angle between the incident ray and the normal to the surface (1)
- The angle of reflection is the angle between the reflected ray and the normal to the surface
In the picture, we see that the angle marked with X corresponds to the angle defined in (1), so it is the angle of incidence.
Answer: You can betterly understand what's around you and how it works