No planet has anywhere near the mass that the sun does, and the strength of gravity in an object is proportional to its mass.
Planets have less mass than the sun, hence, they have weaker gravitational fields.
No. The surface gravity of a planet depends on its size and mass, not its distance from the sun.
No.
The planets will get too hot than melt/explode.
Earth has weaker gravity than the sun bu stronger gravity than the moon.
Yes. The sun is attracted by the gravity of the planets just as the planets are attracted by the sun. Since the sun is more massive it does not move as much, bu the gravity of the orbiting planets does cause it to "wobble."
The gravity of the sun is massive. A 100 lb person would weigh over 2100 lbs on the sun!
because gravity and inertia are kinda of playing a game of tug a war but both sides are equal so they do not move
The sun's gravity pulls the planets.
The gravity that keeps the planets in orbit is the sun's gravity, which is a product of the sun's mass.
Actually, it's the gravity of the sun that keeps the planets in orbit around it. The force of gravity between the sun and the planets causes them to be pulled towards the sun, while their momentum keeps them moving in a circular or elliptical path.
Yes, with no Sun, there would be no large force of gravity to hold the solar system together. Each of the planets would carry on in a straight line (more or less) rather than in an ellipse around the Sun.