Answer:
Assuming the given radius is 10⁶ km, the radius of the second planet is 1.31 * 10⁶ km.
Explanation:
Newton's law of gravity:
(1)
Centripetal force:
(2)
On a circular orbit both forces must be equal:
(3)
Solving for ω:
(4)
The period T is given by:
(5)
Taking the ratio of two periods:
(6)
Solving for r₁:
(7)
Answer: B
Cohesion makes water stick together, which is vital in transporting nutrients from tree roots to other parts of the plant.
If light is traveling through a medium (i.e. air), the color of light depends on the wavelength.
The following are wavelength intervals of colors on the visible light spectrum. Measured in nanometers (nm).
Red: 700–635 nm
Orange: 635–590 nm
Yellow: 590–560 nm
Green: 560–520 nm
Blue: 490–450 nm
Violet: 450–400 nm
Answer:
Conduction occurs when two objects at different temperatures are in contact with each other. Heat flows from the warmer to the cooler object until they are both at the same temperature. ... It is caused by the increased activity or speed of molecules in a substance, which in turn causes temperature to rise accordingly. This process continues until heat energy from the warmer object spreads throughout the cooler object.
Explanation: