A box of mass mmm is pushed with acceleration aaa on a frictionless ramp. The ramp has an angle \thetaθtheta. What is the mass m of the box?

Place me with this question is my last question

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

In 1859, charles darwin published the first edition of on the origin of species, which explained his observations of various groups of animals that showed great similarities but minor differences. darwin concluded that if a population of one species separates into two different populations that live in separate locations, then over the course of many generations the different populations can develop into different species. this idea predicted many future biological findings and became the basis of modern biology. darwin’s explanation for why different species exist is best described as a(n) law. theory. inquiry. hypothesis.