17. Examples of a lever machine include A. Ramp, wedge, chisel
B. Doorknob, bicycle
C. Seesaw, crowbar, automobile jack
D. Threads on bolts, corkscrews, jar lids

Does the energy in a solid increase or decrease when changing to a liquid?

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit