Physics, 22.05.2021 03:10 melanie7152
Atom: Finally, there is the ever-so-tiny atom. It takes extremely powerful microscopes to view
these units of matter (anything that has mass and takes up space). Elements such as carbon,
oxygen and hydrogen are composed of atoms. Atoms bonded together to make molecules. For
example, a water molecule consists of two hydrogen atoms bonded to an oxygen atom. Atoms
represent the smallest and most specific unit of this hierarchical structure.
What does this paragraph explain that other sections DO NOT?
(A)
that atoms are at the top of the pyramid of life
(B)
that molecules are made up of atoms
(C)
that atoms can only be seen with a microscope
(D)
that molecules and atoms are small units
Yes
Answers: 1
Physics, 21.06.2019 22:00, treytonmesser
•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?
Answers: 3
Physics, 22.06.2019 12:30, spenceraniyah1
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above
Answers: 3
Physics, 22.06.2019 19:00, maddied2443
Matter that emits no light at any wavelength is called
Answers: 2
Atom: Finally, there is the ever-so-tiny atom. It takes extremely powerful microscopes to view
thes...
Chemistry, 13.08.2019 01:30