Answer:
The angular velocity of a person standing on the equator is approximately radians per second.
Explanation:
The Earth rotates at constant speed. From Rotational Physics, the angular velocity (), measured in radians per second, is defined by the following formula:
(1)
Where is the period of rotation of the Earth, measured in seconds.
If we know that , then the angular velocity of a person standing on the equator is:
The angular velocity of a person standing on the equator is approximately radians per second.
Answer:
Filters
Explanation:
Filters are transparent or translucent slices of glass or gelatin that are attached in front of the lens of cameras. Filters serve several purposes such as protecting the lens, regulating the amount of light that enters the film, thereby controlling exposure, as well as adding special effects to the images produced.
There are different types of filters that have their unique roles. Examples are the soft focus filter, neutral density filter, polarizing filter, and color balancing filter.
Answer: Figure 1: The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. Nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons
Answer:
Europium has a bright shiny surface. it's steel grey and has a melting point of 826 degree Celsius and a boiling point of about 1,489 degree Celsius.
Explanation:
the density is 5.24 grams per cubic centimeter.