Pressure = Force/ Area = 3000/2 = 1500 pascal.
A) voltage available to each light remains constant regardless of the number of lights that are on
I took the test
Answer:
Explanation:
All living organisms are made up of cells.
Cells are the fundamental unit of life in all organisms. They perform the basic life functions required of all living organisms.
- Unicellular organisms are made up of just a single cell
- Multi-cellular organisms have more than one cell.
They are the building block of life through which other life organisations are derived.
From the choices, any living organism should have cells.
Answer:
c. the speed of a planet is greatest when it is closest to the Sun.
Explanation:
Johannes Kepler was an astronomer who discovered that planets had elliptical orbits in the early 1600s (between 1609 and 1619).
The three (3) laws published by Kepler include;
I. The first law of planetary motion by Kepler states that, all the planets move in elliptical orbits around the Sun at a focus.
II. According to Kepler's second law of planetary motion, the speed of a planet is greatest when it is closest to the Sun.
Thus, the nearer (closer) a planet is to the Sun, the stronger would be the gravitational pull of the sun on the planet and consequently, the faster is the speed of the planet in terms motion.
III. The square of any planetary body's orbital period (P) is directly proportional to the cube of its orbit's semi-major axis.