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ivanzaharov [21]
3 years ago
5

Summarize the Venn diagram.

Physics
1 answer:
Elena L [17]3 years ago
5 0

Answer:

If this is a multiple choice question, then the answer is D.

Explanation:

Compounds are composed of atoms, which are composed of subatomic particles and consist of matter. Since they are composed of atoms rather than vice-versa, compounds cannot be found inside atoms and are not the most basic form of matter (ruling out A and C). A pure substance contains atoms, which are each composed of subatomic particles. Therefore, a pure substance must have atoms if it contains subatomic particles (ruling out B). The only answer left is D.

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How do you know that a chemical change has happened
Elodia [21]

Answer:

theres is many states of chemical change but its not exaclty the same as physical the appearence might change alittle but chemical like frying a egg is a chemical change because a change of materials into another, new materials with different properties and one or more than one new substances are formed and the subtance changeing or the materials can show chemical changed happened you cant always see it but touching too like heat energy can show a chemical change

Explanation:

i hope this helps and keep ur grades up :)

6 0
1 year ago
Read 2 more answers
A cylinder is fitted with a piston, beneath which is a spring, as in the drawing. The cylinder is open to the air at the top. Fr
Mazyrski [523]

Answer:

x = 0.0537 m or 5.37 cm

Explanation:

Given:

spring constant'k'= 4900 N/m

radius 'r' =0.029 m

Area 'A' =r²π = 0.029²π => 2.6 x 10^{-3} m²

Here, Pressure 'P' is given by,

Pressure = Force / Area

And we know that, for a spring :

F = kx, where k is the spring constant and x is the change in length.

P = kx/A

As P = 101325 Pa

101325 = 4900x / ( 2.6 x 10^{-3})

x = 0.0537 m or 5.37 cm

6 0
3 years ago
Please help me find the answer
anygoal [31]
B-thymine nucleotides is the answer i am sure
8 0
3 years ago
Convert 60 miles/hour to m/s (1.6km = 1mile; 1000m = 1km)
Sedaia [141]

60 miles / hr

= 60 * 1.6 * 1000  m / 60 * 60 s

= 96000 m / 3600 s

= 26.67 m / s

8 0
3 years ago
how Long will it take a plane flying north from Miami to reach New York City 1800 km away if the average velocity of the plane i
alukav5142 [94]
Answer: 1.91 hours or 1 hour and 55 minutes

Procedure:

Average speed = distance / time

=> time = distance / average speed

=> distance = 1800 km / 940 km/h = 1.91 hours

0.91 hours * 60 min / hour = 54.9 min = 55 min

=> 1 hour and 55 min.
8 0
3 years ago
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