Select all the items that are public goods or services.

roads
education
military
police force

All options are correct.

Step-by-step explanation:

Public goods or services are those which may be consumed without reducing the available value for others and which is not withheld from those who are not paying for it.

Public goods or services are supposed to be used by all citizens of that country freely.

Roads are public goods which is used for transportation.

Education is a public service that is avail for every person in the country.

Military are public service whose work is to serve the country and save the public.

Police force is also a public service who is always ready or available for any type of help of people.

Hence, All options are correct.

2.

according to newton’s cannonball model, what happens if the cannonball's velocity is enough to overpower the pull of earth’s gravitystep-by-step explanation:

the image of (6, 9) under a dilation is (4, 6). the scale factor is