When spiral galaxies do collide, the impact is greatest on their: Group of answer choices globular clusters. giant molecular clouds. galactic nuclei. individual stars. open clusters.

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?

Using gravity, an elephant can pull a mouse towards it from the ground. true or false explain why. will give brainliest if answered fast and the best explanation

Should we celebrate the voyages of zheng he mini q answer key