Answer:
Hydrogen (H)
Explanation:
If you look at the periodic table, the elements are numbered. H is number 1 which stands for Hydrogen.
True > the more mass increases more friction
Answer:
C
Explanation:
If a pulley system has an efficiency of 74.2%, then only that fraction of the work performed will be useful. 74.2%=0.742. 0.742*200 is about 148J. Hope this helps!
Both the <span>telescope and the microscope are used to aid the naked eye to see things that a it normally cannot. Both also use lenses to magnify objects.
Have a good day! =)</span>
1) A
2) A
3) A
4) C
8) C
9) C
10) C
11) A
12) C
13) B
14) C
15) C
16) B
17) A
