The coin will float because the liquid is denser than it
Some things that causes friction between surfaces is a bike on a rocky road. The<span> action of one surface or object rubbing against another causing friction. Im not really sure if I helped But yeah..</span>
Answer:
Explanation:
According to Kepler's second law: a line segment joining an object and the Sun sweeps out equal areas during equal intervals of time. This law is equivalent to the constancy of the angular momentum, that is to say:
Here, is the comet's mass, is its distance from the Sun, is its speed and the angle between and
The aphelion and the perihelion are the only two points in the orbit where the radius and velocity are perpendicular. Therefore, at these 2 points, the angular momentum module can be calculated as a simple product:
Rewriting for :