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svlad2 [7]
3 years ago
13

Which statement best describes the difference(s) between atoms and molecules?

Physics
2 answers:
trasher [3.6K]3 years ago
8 0

Answer:

The answer is A

Explanation:

-Dominant- [34]3 years ago
3 0

Answer:

Atoms are the most basic units of an element whereas molecules are  atoms that are chemically bonded together.

Explanation:

  • The atoms are made up of protons, neutrons, and electrons that are the basic constituents of matter.
  • The atoms occur in nature as single or bonded.
  • The inert gases are the atoms that they occur as the individual atoms in nature.
  • All other atoms in nature are bonded to the same elements or different elements and form molecules.
  • Hence, atoms are the most basic units of an element whereas molecules are  atoms that are chemically bonded together.
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You shine a LASER from the air into water. What happens to light?
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A positively charged particle Q1 = +35nC is held fixed at the origin. A second charge of mass m = 3.5ug is floating a distance d
cupoosta [38]

Answer:

Explanation:

Q1 = 35 nC = 35 x 10^-9 C

m = 3.5 micro gram = 3.5 x 10^-9 Kg

d  = 35 cm = 0.35 m

(a) The electrostatic force between the two charges is balanced by the weight of another charge.

F = m g

\frac{1}{4\pi \epsilon _{0}}\frac{Q_{1}Q_{2}}{d^{2}}=mg

Q_{2}=\frac{4\pi \epsilon _{0}mgd^{2}}{Q_{1}}

(b) By substituting the values

Q_{2}=\frac{3.5\times 10^{-9}\times 9.8\times 0.35\timees 0.35}{9\times 10^{9}\times 35\times 10^{9}}

Q2 = 13.34 x 10^-12 C

Q2 = 0.0134 nC

4 0
4 years ago
A. Group of cross country runners decided to go on an hour and a half run. During the first hour, they ran a total of 13 kilomet
pshichka [43]

Answer:

The average speed for the entire run is 12 km/h.

Explanation:      

The average speed is given by the following equation:

\overline{v} = \frac{d_{T}}{t_{T}}

Where:

d_{T}: is the total distance

t_{T}: is the total time

If during the first hour, they ran a total of 13 kilometers and then, they ran 5.0 kilometers during the next half an hour we have:

d_{T} = 13 km + 5 km = 18 km

t_{T} = 1 h + \frac{1}{2} h = 1.5 h

Hence, the average speed is:

\overline{v} = \frac{d_{T}}{t_{T}} = \frac{18 km}{1.5 h} = 12 km/h

Therefore, the average speed for the entire run is 12 km/h.

I hope it helps you!                                                                                      

3 0
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Why is skilled human resources essential in large scale business.​
olga2289 [7]

Answer: Skilled manpower is essential to carry out several development activities.

Explanation:

3 0
3 years ago
Read 2 more answers
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