Why would it probably be very difficult to determine the chemical and physical properties of a newly discovered synthetic element? a. the element would not fit in the periodic table. b. the element’s nuclei would break apart very quickly. c. the element would combine the properties of the nuclei from which it was made. d. the element would lack many properties of ordinary elements.

b. The element's nuclei would break apart very quickly.

newly synthetic element are usually unstable and tends to break down into more stable form

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.