What would happen if two black holes collide

Which feature indicates that mars resides in the inner region of the solar system

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.