If an object is moving with a force of 99n at 12.5m/sec2, what is the mass of this object?

what is the weight of a 55 kg mass?

what is the mass of a person whose weight is 110n?

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

Why is it important to study each branch of earth science?