two objects, one having twice the mass of the other, are initially at rest. two forces, one twice as big as the other, act on the objects in opposite directions as shown above.

The students who were in favor of adopting the new curriculum wrote editorials for the local newspaper which of these best describes how the information in the editorials is different from the information in the feature story

Snakes, dogs, and humans have a vertebral column. snakes and dogs have tails, and humans have vestigial tailbones. dogs and humans have limbs, but snakes do not. most reptiles lay eggs, but a few give birth to live young. what do these structures suggest about the evolutionary pattern between the three organisms? 1. snakes and dogs are more closely related than snakes and humans. 2. snakes and humans are more closely related than humans and dogs. 3. dogs and humans are more closely related than snakes and humans. 4. dogs, snakes, and humans share a common ancestor. 5. the early ancestor of snakes and dogs is the same, and the early ancestor of humans is different.

How do you work out 21.3-8= show your working. plz