Which contributions did Galileo make to the model of the solar system? Check all that apply.

1.a mathematical model for the orbits of the planets
2.scientifically accurate data on planetary orbits
3.data that showed that planets reflected sunlight similar to Earth’s moon
4.the idea that stars are other suns that do not move
5.observations of the moons of Jupiter rotating around the gas giant

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

the answer to this is proletariats.

hope this : )