The ability to travel great distances in the shortest time was achieved by which invention?

What happens to isotopes that are unstable?

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass

27 drag each label to the correct location on the image. a particular exosolar system has five planets in total: a, b, c, d, and e. the table lists the orbital periods of these planets in days. planet orbital period (days) a 600 b 80 c 1,000 d 500 e 100 move each planet to its orbit in the system.