Asolar system is composed of a star and a planet that goes around the star in a circunference. the planet spins around itself with the axis of this rotation perpendicular to the plane of its orbit around the star. i need to find the position of the star with respect to a reference frame attached to the surface of the planet, asumming that: 1) the distance between the planet and the star is far greater than the radius of the planet; 2) the radius of the planet is significant.

come closer and become far apart and become steam/gas

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.