If Earth experienced an iron shortage, where could astronomers direct cosmic mining equipment to find more? A.
the cores of the other terrestrial planets

B.
the rings of Saturn and Uranus

C.
the surface of the Martian moons

D.
the atmosphere of Jupiter

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons

To a of 4 x hz is 1. 0. mm nm nm