A small asteroid of mass M is near a big asteroid of mass 3M. There are no other gravitating objects nearby. The magnitudes of the accelerations of the big and small asteroids are aBig and asmall, respectively. What is the ratio of the magnitudes of the accelerations (aBig/ asmall)?

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.