It took a bulldozer 62,000 J of work to move a rock 30 m. It took 5 minutes. How much force did the bulldozer have to apply? A- 2066.6 N
B- 413.33 N
C- 12,400 N
D- 10,333.33 N

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present

The mantle is made up of which structural zones?